5,276 results match your criteria Granular Cell Tumors


Ameloblastoma with distinctive granular cell pattern: an 8 case study.

Autops Case Rep 2018 Oct-Dec;8(4):e2018052. Epub 2018 Oct 9.

Universidade de São Paulo (USP), School of Dentistry, Department of Stomatology. São Paulo, SP, Brazil.

Ameloblastoma with granular cell pattern (AGC) is classified as an unusual histological subtype of solid/multicystic ameloblastoma, characterized by granular changes in stellate-like cells located within the inner portion of the epithelial follicles. Studies have revealed that lysosomal overload causes cytoplasmic granularity; however, the mechanism involved remains poorly understood. Here we report on eight cases of granular cell ameloblastoma, in the posterior region of the mandible. Read More

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http://dx.doi.org/10.4322/acr.2018.052DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6360828PMC
October 2018

Endoscopic submucosal dissection of an esophageal granular cell tumor.

VideoGIE 2019 Feb 11;4(2):58-61. Epub 2019 Jan 11.

Faculty of Medicine, Department of Medicine II, University Hospital Freiburg, University of Freiburg, Freiburg, Germany.

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http://dx.doi.org/10.1016/j.vgie.2018.10.015DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6363592PMC
February 2019

[Successful treatment of pure red cell aplasia with cyclosporin in a patient with T-cell large granular lymphocytic leukemia harboring the STAT3 D661V mutation].

Rinsho Ketsueki 2019 ;60(1):39-45

Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University.

T-cell large granular lymphocyte (T-LGL) leukemia is a chronic T-cell monoclonal disease that is occasionally associated with pure red cell aplasia (PRCA). A 71-year-old previously healthy man complained of physical fatigue and exhibited anemia (hemoglobin, 10.5 g/dl) with lymphocytosis (76%) showing LGL. Read More

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http://dx.doi.org/10.11406/rinketsu.60.39DOI Listing
January 2019
1 Read

S100 negative granular cell tumor of the oral cavity: dermoscopy and surgical approach.

An Bras Dermatol 2019 Jan-Feb;94(1):79-81

Department of Pathology, Hospital Militar Central, Universidad Militar Nueva Granada, Bogotá, Colombia.

We report the case of a 47-year-old male patient with S100 negative granular cell tumor of the oral cavity, focusing on dermoscopic features as well as surgical approach, not previously reported in the literature. The study contributes to the literature on dermoscopy and surgical treatment for this tumor and provides a practical approach to differentiating non-neural granular cell tumors and granular cell tumors. Read More

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http://dx.doi.org/10.1590/abd1806-4841.20197442DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6360981PMC

Pancreatic granular cell tumor diagnosed by endoscopic ultrasound-guided fine needle aspiration biopsy.

Clin J Gastroenterol 2019 Feb 6. Epub 2019 Feb 6.

Department of Gastroenterology, Kitasato University School of Medicine, Kitasato University Hospital, Sagamihara, Kanagawa, Japan.

Pancreatic granular cell tumors (GCTs) are rare and making an imaging diagnosis of pancreatic GCT is difficult because it has no definite characteristics on contrast-enhanced computed tomography (CE-CT) or magnetic resonance imaging (MRI) owing to varying findings. We report about a 32-year-old woman who presented with an incidental finding of a pancreatic tumor with a past history of excision of a right forearm GCT nodule 12 years ago. CE-CT revealed a 23-mm-sized homogeneous low enhancement tumor in the arterial phase in the pancreatic body. Read More

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http://dx.doi.org/10.1007/s12328-019-00941-7DOI Listing
February 2019

A Guide to Yellow Oral Mucosal Entities: Etiology and Pathology.

Head Neck Pathol 2019 Jan 31. Epub 2019 Jan 31.

Virginia Commonwealth University School of Dentistry, Richmond, VA, USA.

When faced with an uncertain clinical pathosis in the oral cavity, identifying the color of the mucosal lesion helps to narrow down a differential diagnosis. Although less common than red and white lesions, yellow lesions encompass a small group of distinct mucosal pathologic entities. Adipose tissue, lymphoid tissue, and sebaceous glands are naturally occurring yellow constituents of the oral cavity and become apparent with associated developmental or neoplastic lesions. Read More

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http://dx.doi.org/10.1007/s12105-018-0977-4DOI Listing
January 2019
3 Reads

Study of structural and magnetic properties and heat induction of gadolinium-substituted manganese zinc ferrite nanoparticles for in vitro magnetic fluid hyperthermia.

J Colloid Interface Sci 2019 Apr 17;541:192-203. Epub 2019 Jan 17.

Convergence of Smart Sensors Institute, Dong-Eui University, Busan, Republic of Korea; Department of Radiological Science, Dong-Eui University, Busan, Republic of Korea. Electronic address:

This article outlines the synthesis of gadolinium (Gd)-doped manganese zinc ferrite magnetic nanoparticles (MNPs) as potential magnetic carriers for magnetic fluid hyperthermia (MFH). MNPs with high specific loss power (SLP; 146 W/g) have been developed and used for an in vitro hyperthermia study. The treatment of MFH is fruitful if there is an adequate number of MNPs in tumor cells with the highest SLP to rapidly generate heat while minimizing thermal injury to surrounding healthy tissue. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.063DOI Listing
April 2019
2 Reads

Submucosal Tunnel Endoscopic Resection for Esophageal Submucosal Tumors: A Multicenter Study.

Gastroenterol Res Pract 2018 2;2018:2149564. Epub 2018 Dec 2.

Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Background: Submucosal tumors (SMTs) are primarily benign tumors, but some may have a malignant potential. Endoscopic submucosal dissection that has been used for removing esophageal SMTs could cause perforation. Submucosal tunnel endoscopic resection (STER) is an improved and an effective technique for treating esophageal SMTs. Read More

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http://dx.doi.org/10.1155/2018/2149564DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6304882PMC
December 2018
1 Read

Frequent mutations of genes encoding vacuolar H -ATPase components in granular cell tumors.

Genes Chromosomes Cancer 2018 Dec 30. Epub 2018 Dec 30.

Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan.

Granular cell tumors (GCTs) are rare mesenchymal tumors that exhibit a characteristic morphology and a finely granular cytoplasm. The genetic alterations responsible for GCT tumorigenesis had been unknown until recently, when loss-of-function mutations of ATP6AP1 and ATP6AP2 were described. Thus, we performed whole-exome sequencing, RNA sequencing, and targeted sequencing of 51 GCT samples. Read More

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http://doi.wiley.com/10.1002/gcc.22727
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http://dx.doi.org/10.1002/gcc.22727DOI Listing
December 2018
6 Reads

Metastatic granular cell tumor to the breast diagnosed by fine needle aspiration cytology: A case report with review of the literature.

Diagn Cytopathol 2019 Mar 27;47(3):226-229. Epub 2018 Dec 27.

Department of Pathology, Rush University Medical Center, Chicago, Illinois.

Granular cell tumors (GCT) are mesenchymal neoplasms of Schwann cell/neural origin. Malignant granular cell tumors (MGCTs) represent <1-2% of all GCT and defined as tumors demonstrating metastases or destructive local growth. Other clinical parameters suggestive of malignancy include rapid growth, size > 4 cm and necrosis. Read More

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http://dx.doi.org/10.1002/dc.24060DOI Listing

Description of epithelial granular cell in catshark spiral intestine: Immunohistochemistry and ultrastructure.

J Morphol 2019 Feb 27;280(2):205-213. Epub 2018 Dec 27.

Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.

We evaluated the histology of the spiral intestine of the blackmouth catshark (Galeus melastomus), a small shark distributed in the eastern Atlantic and Mediterranean Sea basin. Entire digestive tracts of 10 G. melastomus were studied using histochemical, immunohistochemical, and ultrastructural methods. Read More

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http://doi.wiley.com/10.1002/jmor.20932
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http://dx.doi.org/10.1002/jmor.20932DOI Listing
February 2019
8 Reads

Granular cell ameloblastoma: A rare case report and review of literature.

Indian J Dent Res 2018 Nov-Dec;29(6):830-835

Department of Conservative and Endodontics. M.A. Rangoonwala College of Dental Sciences and Research Center, Pune, Maharashtra, India.

Ameloblastoma is a benign locally aggressive type of odontogenic tumor derived exclusively from the epithelium. Histologically, ameloblastoma is classified into many variants, of which granular cell ameloblastoma (GCA) is a rare type, characterized by nest of large eosinophilic granular cells. This article describes a case of GCA in a 50-year-old female patient with clinical, radiological, and histological features along with a systematic review of the literature. Read More

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http://dx.doi.org/10.4103/ijdr.IJDR_407_17DOI Listing
December 2018
1 Read

[The histopathology and immunohistochemistry of granular cell tumour. A study of 12 cases with a brief historical note].

Rev Esp Patol 2019 Jan - Mar;52(1):11-19. Epub 2018 Jul 6.

Departamento de Anatomía Patológica, Hospital y Fundación Médica Sur, Ciudad de México, México; Departamento de Biología Celular y Tisular, Escuela de Medicina, Universidad Panamericana, Ciudad de México, México.

Introduction And Objective: Granular cell tumour (GCT) is a benign neoplasm of neural/schwannian origin, usually presenting as a single asymptomatic lesion, mainly located in the dermis and subcutaneous tissue or submucosa, although multiple tumours may occur. Microscopically, GCTs are composed of large cells with abundant eosinophilic, granular cytoplasm arranged in sheets, nests, cords or trabeculae. Based on the cytological characteristics and the presence of necrosis, three types are recognized: benign, atypical and malignant. Read More

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http://dx.doi.org/10.1016/j.patol.2018.05.004DOI Listing
July 2018
1 Read

Granular cell tumor of the lung.

Diagn Cytopathol 2018 Dec 23. Epub 2018 Dec 23.

Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.

A 46-year-old female with history of asthma, active smoking (20 pack-years), and schizophrenia was evaluated for a persistent asymptomatic pulmonary nodule. Her past medical history was notable for hypertension, obesity, polycystic ovary syndrome, abnormal uterine bleeding, multinodular thyroid gland, and vitamin D deficiency. Seven months before presentation, a chest radiograph (CXR) was obtained to evaluate unintended weight loss, and showed a 3 cm spiculated mass in the left lower lobe concerning for a primary lung malignancy. Read More

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http://dx.doi.org/10.1002/dc.24112DOI Listing
December 2018
6 Reads

The Potential for Cancer Immunotherapy in Targeting Surgery-Induced Natural Killer Cell Dysfunction.

Cancers (Basel) 2018 Dec 20;11(1). Epub 2018 Dec 20.

Department of Medicine, University of Ottawa, Ottawa, ON K1H8L1, Canada.

Natural Killer (NK) cells are granular lymphocytes of the innate immune system that are able to recognize and kill tumor cells without undergoing clonal selection. Discovered over 40 years ago, they have since been recognized to possess both cytotoxic and cytokine-producing effector functions. Following trauma, NK cells are suppressed and their effector functions are impaired. Read More

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http://www.mdpi.com/2072-6694/11/1/2
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http://dx.doi.org/10.3390/cancers11010002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356325PMC
December 2018
4 Reads

A granular cell tumor: an unusual colon polyp.

Rev Esp Enferm Dig 2018 Dec 18;111. Epub 2018 Dec 18.

Gastrenterology, Hospital de Braga, Portugal.

We read with interest the article by Sevilla Ribota et al1 that described an unexpected finding of a granular cell tumour (GCT) of the rectum, which was removed by band ligation-assisted mucosectomy. We present a similar case of a GCT of the cecum, which was resected using a different endoscopic procedure. Read More

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http://dx.doi.org/10.17235/reed.2018.5918/2018DOI Listing
December 2018

Cutaneous granular cell tumor clinically mimicking ectopic breast diagnosed on fine needle aspiration cytology.

Diagn Cytopathol 2018 Dec 18. Epub 2018 Dec 18.

Department of Pathology and Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.

Granular cell tumor (GCT) is a rare benign neoplasm of Schwannian origin which accounts of 0.5% of soft tissue tumors. Although the most common site for GCT is tongue, it can occur at any site. Read More

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http://dx.doi.org/10.1002/dc.24124DOI Listing
December 2018

Granular cell tumor of the breast mimicking malignancy: a case report with a literature review.

Acta Radiol Open 2018 Dec 10;7(12):2058460118816537. Epub 2018 Dec 10.

Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan.

Granular cell tumor (GCT) is a rare neoplasm of the soft tissues and <1% of all GCTs are malignant. Initially, GCT was considered a myogenic lesion affecting the female breast (myoblastoma). We report the case of an 83-year-old woman with a palpable lump in the left breast; mammography and ultrasound showed an irregular lesion. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118816537
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http://dx.doi.org/10.1177/2058460118816537DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6291886PMC
December 2018
1 Read

Case report: an intriguing sign in a patient with an inferior rectus muscle granular cell tumor.

Medicine (Baltimore) 2018 Dec;97(50):e13624

Department of Ophthalmology, Second Hospital of Jilin University, Changchun, China.

Rationale: Occurrence of granulosa cell tumors (GCTs) in the eye are rare and may be diagnosed by imaging examination and immune-histochemical studies. Two common signs of a rectus muscle tumor are the proptosis of the eye ball and the complaint of bi-ocular diploma.

Patient Concerns: A 45-year-old man visited our ophthalmology department with an about a 3-year history of vertical diplopia. Read More

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http://dx.doi.org/10.1097/MD.0000000000013624DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320031PMC
December 2018

Distinct Expression and Clinical Significance of Zinc Finger AN-1-Type Containing 4 in Oral Squamous Cell Carcinomas.

J Clin Med 2018 Dec 10;7(12). Epub 2018 Dec 10.

Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Carretera de Rubín, s/n, 33011 Oviedo, Asturias, Spain.

Zinc finger AN1-type containing 4 (ZFAND4) has emerged as a promising prognostic marker and predictor of metastasis for patients with oral squamous cell carcinoma (OSCC). However, further validation is fundamental before clinical implementation. Hence, this study evaluated the expression pattern of ZFAND4 protein expression by immunohistochemistry using an independent cohort of 125 patients with OSCC, and correlations with the clinicopathologic parameters and disease outcome. Read More

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http://dx.doi.org/10.3390/jcm7120534DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6306696PMC
December 2018
6 Reads

Granular Cell Tumour in Stomach: a Case Report.

Indian J Surg Oncol 2018 Dec 21;9(4):598-600. Epub 2018 Jul 21.

Department of Pathology, Seth GSMC & KEMH, Parel, Mumbai-12, India.

Granular cell tumours are uncommon, usually benign soft tissue tumours. They are thought to be neural, arising from Schwann cells and can occur at various sites. Their occurrence in gastrointestinal tract is rare, the commonest site being oesophagus followed by large intestine. Read More

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http://link.springer.com/10.1007/s13193-018-0794-y
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http://dx.doi.org/10.1007/s13193-018-0794-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265194PMC
December 2018
5 Reads

Effect of experimentally induced hypertension on cerebellum of postmenopausal rat.

J Cell Physiol 2018 Dec 7. Epub 2018 Dec 7.

Department of Physiology, Faculty of Medicine, Minia University, Minia, Egypt.

Cerebellum seems to be a specific target for both the decrease of estrogen and hypertension in menopause. The aim of this study was to investigate the hypertension and menopause-induced changes in rat's cerebellar cortex and the possible mechanisms of these changes. Rats were divided into four groups: the sham-operated control (SC-group), the ovariectomized (OVX-group), the hypertensive (H-group), and the ovariectomized-hypertensive (OVX-H-group) group. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/jcp.27961
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http://dx.doi.org/10.1002/jcp.27961DOI Listing
December 2018
24 Reads
3.839 Impact Factor

Unknown primary large-cell neuroendocrine tumor.

Autops Case Rep 2018 Apr-Jun;8(2):e2018025. Epub 2018 Jun 8.

a Centro Hospitalar de São João, Medical Oncology Department. Porto, Portugal.

Large-cell neuroendocrine tumors (NETs) are poorly differentiated malignancies of rare incidence and aggressive nature. NETs mostly arise in the lung followed by the gastrointestinal tract, although they are potentially ubiquitous throughout the body. Primary unknown NET has a worse prognosis and shorter survival comparing with other NETs, with limited available data in the literature concerning this subgroup. Read More

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http://dx.doi.org/10.4322/acr.2018.025DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6145498PMC
June 2018
4 Reads

A CK1α Activator Penetrates the Brain and Shows Efficacy Against Drug-resistant Metastatic Medulloblastoma.

Clin Cancer Res 2019 Feb 28;25(4):1379-1388. Epub 2018 Nov 28.

Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, University of Miami, Miller School of Medicine, Miami, Florida.

Purpose: Although most children with medulloblastoma are cured of their disease, Sonic Hedgehog (SHH) subgroup medulloblastoma driven by mutations is essentially lethal. Casein kinase 1α (CK1α) phosphorylates and destabilizes GLI transcription factors, thereby inhibiting the key effectors of SHH signaling. We therefore tested a second-generation CK1α activator against -mutant, -amplified medulloblastoma. Read More

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http://dx.doi.org/10.1158/1078-0432.CCR-18-1319DOI Listing
February 2019
2 Reads

Les difficultés du diagnostic : du carcinome basocellulaire aux tumeurs trichoblastiques: From basal cell carcinoma to trichoblastic tumors: a diagnostic challenge.

Authors:
B Cribier

Ann Dermatol Venereol 2018 Nov;145 Suppl 5:VS3-VS11

Clinique dermatologique, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67091 Strasbourg cedex, France. Electronic address:

Basal cell carcinoma (BCC) is a very common tumor, of which the diagnosis is generally easy. Clinical prediction of histopathological subtype however is however often difficult, i.e. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01519638183125
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http://dx.doi.org/10.1016/S0151-9638(18)31254-7DOI Listing
November 2018
14 Reads

Management of Palpable Pediatric Breast Masses With Ultrasound Characteristics of Fibroadenoma: A More Conservative Approach.

AJR Am J Roentgenol 2019 Feb 26;212(2):450-455. Epub 2018 Nov 26.

1 Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390.

Objective: The purpose of this study is to describe our experience with pathologically proven breast masses at a tertiary care pediatric institution, review published management strategies, and propose new management recommendations for the pediatric population.

Materials And Methods: All pediatric breast ultrasound examinations performed at a dedicated pediatric facility over a 4-year period were reviewed. Maximum measurements of solid masses with features of a fibroadenoma were recorded. Read More

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https://www.ajronline.org/doi/10.2214/AJR.17.19482
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http://dx.doi.org/10.2214/AJR.17.19482DOI Listing
February 2019
7 Reads

Two Cases of Granular Cell Tumors that Clinically Mimicked Hypertrophic Scars and Keloids.

J Nippon Med Sch 2018 ;85(5):279-282

Department of Plastic, Reconstructive & Aesthetic Surgery, Nippon Medical School.

We report two cases of granular cell tumors (GCTs) arising on rare sites, namely, the nape and umbilicus. While GCTs have a very characteristic histology, their clinical signs and symptoms are non-specific. Therefore, it is extremely difficult to make a diagnosis of GCT on the basis of clinical findings only. Read More

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http://dx.doi.org/10.1272/jnms.JNMS.2018_85-44DOI Listing
February 2019

Genetic ablation of Gpr37l1 delays tumor occurrence in Ptch1 mouse models of medulloblastoma.

Exp Neurol 2019 Feb 16;312:33-42. Epub 2018 Nov 16.

Institute of Cell Biology and Neurobiology, Italian National Research Council (CNR), I-00015, Monterotondo Scalo, Rome, Italy.

The G-protein coupled receptor 37-like 1 (Gpr37l1) is specifically expressed in most astrocytic glial cells, including cerebellar Bergmann astrocytes and interacts with patched 1 (Ptch1), a co-receptor of the sonic hedgehog (Shh)-smoothened (Smo) signaling complex. Gpr37l1 null mutant mice exhibit precocious post-natal cerebellar development, with altered Shh-Smo mitogenic cascade and premature down-regulation of granule cell precursor (GCP) proliferation. Gpr37l1 expression is downregulated in medulloblastoma (MB) and upregulated in glioma and glioblastoma tumors. Read More

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http://dx.doi.org/10.1016/j.expneurol.2018.11.004DOI Listing
February 2019
12 Reads

Benign Oral Mucosal Lesions: Clinical and Pathological Findings Part I- Benign Oral Mucosal lesions.

J Am Acad Dermatol 2018 Nov 14. Epub 2018 Nov 14.

Department of Dermatology, Boston University School of Medicine, Boston, MA. Electronic address:

A diverse spectrum of benign oral mucosal lesions exists, presenting as either isolated oral findings or in association with dermatological conditions. Oral lesions can closely resemble one another; therefore, it is important for clinicians to be able to recognize their distinctive features and recognize benign versus malignant disease and when a biopsy is warranted. In this continuing medical education series, we review oral anatomy and the clinical attributes of several benign lesions of the oral cavity along with the appropriate management and therapeutic modalities. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01909622183288
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http://dx.doi.org/10.1016/j.jaad.2018.09.061DOI Listing
November 2018
11 Reads

Deep Learning Models Differentiate Tumor Grades from H&E Stained Histology Sections.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:620-623

Aberration in tissue architecture is an essential index for cancer diagnosis and tumor grading. Therefore, extracting features of aberrant phenotypes and classification of the histology tissue can provide a model for computer-aided pathology (CAP). As a case study, we investigate the application of convolutional neural networks (CNN)s for tumor grading and decomposing tumor architecture from hematoxylin and eosin (H&E) stained histology sections of kidney. Read More

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http://dx.doi.org/10.1109/EMBC.2018.8512357DOI Listing
July 2018
10 Reads

Rare granular cell tumor affecting a 13-year-old boy.

Indian J Dent Res 2018 Sep-Oct;29(5):687-689

Consultant, Department of Oral and Maxillofacial Surgery, Balaji Dental and Craniofacial Hospital, Chennai, Tamil Nadu, India.

Granular cell tumor (GCT) is a rare soft-tissue neoplasm, first described in 1926. GCT often manifests as a single, painless nodule that shows a slow enlargement in the cutaneous, subcutaneous, or submucosal tissues. It is commonly reported in adults in the third to sixth decade of life. Read More

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http://www.ijdr.in/text.asp?2018/29/5/687/244947
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http://dx.doi.org/10.4103/ijdr.IJDR_651_18DOI Listing
November 2018
9 Reads

Malignant proliferating trichilemmal tumor of the forearm: a case report of an unusual location of a rare cutaneous adnexal tumor.

J Surg Case Rep 2018 Oct 31;2018(10):rjy290. Epub 2018 Oct 31.

Department of Surgery, St. Luke's Episcopal Hospital, Ponce, Puerto Rico.

Proliferating trichilemmal tumor (PTT) is a rare cutaneous adnexal neoplasm of the hair follicle that undergoes outer root sheath differentiation in the isthmus. Histological hallmarks include trichilemmal keratinization, lack of granular layer and lobular proliferation of squamous epithelium with glycogenated clear cells. It affects predominantly elderly women, especially over the scalp. Read More

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https://academic.oup.com/jscr/article/doi/10.1093/jscr/rjy29
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http://dx.doi.org/10.1093/jscr/rjy290DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6207842PMC
October 2018
13 Reads

Intravascular lymphoma forming massive aortic tumors complicated with sarcoidosis and focal segmental glomerulosclerosis: a case report and literature review.

BMC Nephrol 2018 Oct 29;19(1):300. Epub 2018 Oct 29.

Department of Kidney Disease and Transplant Center, Shonan Kamakura General Hospital, 1370-1 Okamoto, Kamakura, Kanagawa, 247-8533, Japan.

Background: Intravascular large B-cell lymphoma (IVLBCL) is a rare subtype of extranodal diffuse large B-cell lymphoma characterized by proliferation of B cells within small vessels. Herein, we report a case of a 77-year-old man who presented with IVLBCL and massive tumor formation on the aortic wall who was previously diagnosed with sarcoidosis and focal segmental glomerulosclerosis (FSGS). To our knowledge, this is the first reported case of an IVLBCL with aortic tumor formation. Read More

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https://bmcnephrol.biomedcentral.com/articles/10.1186/s12882
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http://dx.doi.org/10.1186/s12882-018-1106-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206852PMC
October 2018
7 Reads

Aggressive NK-Cell Leukemia.

Authors:
Fumihiro Ishida

Front Pediatr 2018 10;6:292. Epub 2018 Oct 10.

Department of Biomedical Laboratory Sciences, Shinshu University School of Medicine, Matsumoto, Japan.

Aggressive NK cell leukemia (ANKL) is a rare malignant lymphoproliferative disorder of mature NK cells closely associated with Epstein-Barr virus (EBV) and more common in East Asia than in other areas. Significant variations exist in the morphology of ANKL tumor cells, from typical large granular lymphocyte morphology to highly atypical features with basophilic cytoplasm containing azurophilc granules. The main involved sites are hepatosplenic lesions, bone marrow and peripheral blood, and nasal or skin lesions are infrequent. Read More

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http://dx.doi.org/10.3389/fped.2018.00292DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6191480PMC
October 2018
7 Reads

Congenital Granular Cell Tumor: Case Report and Review.

Case Rep Pediatr 2018 26;2018:4389158. Epub 2018 Sep 26.

Department of Plastic & Reconstructive Surgery, Childrens Hospital of Michigan, Detroit Medical Center, 3901 Beaubien St., Detroit, MI 48201, USA.

Congenital granular cell tumors are infrequently occurring masses occurring on a neonate's gingiva/alveolus. These lesions are benign with no noted malignant transformation, and treatment of excision is based on its effect on the neonate's respiratory ability and/or nutritional intake. The purpose of this review is to discuss a case of a congenital granular cell tumor and its treatment and review of the literature including demographics, histopathology, and operative treatment. Read More

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http://dx.doi.org/10.1155/2018/4389158DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6178507PMC
September 2018

Negative Survival Impact of High Radiation Doses to Neural Stem Cells Niches in an IDH-Wild-Type Glioblastoma Population.

Front Oncol 2018 4;8:426. Epub 2018 Oct 4.

Radiotherapy Department, Assistance Publique des Hôpitaux de Marseille, Marseille, France.

Assess the impact of radiation doses to neural stem cell (NSC) niches in patients with IDH-wild-type glioblastoma. Fifty patients were included in the study. NSC niches [SubVentricular Zone (SVZ) and Sub Granular Zone (SGZ)] were contoured by fusing CT scans and pre-therapy MRI, Tumor location defined ipsilateral and contralateral SVZ and SGZ. Read More

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https://www.frontiersin.org/article/10.3389/fonc.2018.00426/
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http://dx.doi.org/10.3389/fonc.2018.00426DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6180179PMC
October 2018
8 Reads

Granular Cell Tumor Located in the Bulbar Subconjunctival Space.

Ocul Oncol Pathol 2018 Sep 23;4(2):90-92. Epub 2017 Aug 23.

Federal University of Bahia, Salvador, Brazil.

Aim: To report an unusual case of granular cell tumor.

Methods: Case report.

Results: A 14-year-old male presented with a bulbar conjunctival yellowish nonmovable mass, in the left eye. Read More

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https://www.karger.com/Article/FullText/477471
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http://dx.doi.org/10.1159/000477471DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6167665PMC
September 2018
2 Reads

Cutaneous immunohistochemical staining pattern of p53β isoforms.

J Clin Pathol 2018 Dec 10;71(12):1120-1122. Epub 2018 Oct 10.

Department of Dermatology, School of Medicine, University of Dundee, Dundee, UK.

p53 is considered the guardian of the genome and as such has numerous functions. The gene is the most commonly mutated gene in cancer, and yet the exact biological significance of such mutations remains unclear. There are at least 12 different isoforms of p53, and the complexity of the p53 pathway may be in part related to these isoforms. Read More

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http://dx.doi.org/10.1136/jclinpath-2018-205098DOI Listing
December 2018

Somatic Mutations of TSC2 or MTOR Characterize a Morphologically Distinct Subset of Sporadic Renal Cell Carcinoma With Eosinophilic and Vacuolated Cytoplasm.

Am J Surg Pathol 2019 Jan;43(1):121-131

Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY.

The differential diagnosis of renal cell neoplasms with solid or nested architecture and eosinophilic cytoplasm has become increasingly complex. Despite recent advances in classifying a number of entities exhibiting this morphology, some tumors remain in the unclassified category. Here we describe a morphologically distinct group of sporadic renal cell carcinoma (RCC) with predominantly nested architecture, eosinophilic, and remarkably vacuolated cytoplasm retrospectively identified from a cohort of previously unclassified tumors. Read More

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http://Insights.ovid.com/crossref?an=00000478-900000000-9775
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http://dx.doi.org/10.1097/PAS.0000000000001170DOI Listing
January 2019
11 Reads

Posterior pituitary tumours: the spectrum of a unique entity. A clinical and histological study of a large case series.

Endocrine 2019 01 1;63(1):36-43. Epub 2018 Oct 1.

Department of Endocrinology, Hospital Universitari de Bellvitge, Barcelona, Spain.

Purpose: In 2017, the WHO established that pituicytoma, granular cell tumour (GCT) and spindle cell oncocytoma (SCO) are posterior pituitary tumours (PPT). Recent data suggests that these tumours probably arise from the pituicytes and may constitute a spectrum of a unique histopathological entity. Our aim is to report the clinical findings and surgical outcomes of 16 patients with PPT. Read More

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http://dx.doi.org/10.1007/s12020-018-1774-2DOI Listing
January 2019
4 Reads

Congenital granular cell tumor of the newborn - Spontaneous regression or early surgical intervention.

J Indian Soc Pedod Prev Dent 2018 Jul-Sep;36(3):319-323

Oral Health Sciences Centre, Unit of Pedodontics and Preventive Dentistry, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Congenital granular cell tumor of the newborn is a benign, relatively innocuous hamartomatous lesion arising from the alveolar ridge. Large lesions often warrant prompt surgical removal owing to the associated difficulty in breastfeeding and respiration of the infant. However, for medium-sized lesions, another approach could be observed for spontaneous regression. Read More

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http://dx.doi.org/10.4103/JISPPD.JISPPD_1187_17DOI Listing
January 2019
3 Reads

Childhood supratentorial ependymomas with YAP1-MAMLD1 fusion: an entity with characteristic clinical, radiological, cytogenetic and histopathological features.

Brain Pathol 2018 Sep 23. Epub 2018 Sep 23.

Institute of Neuropathology, University of Bonn Medical Center, Bonn, Germany.

Ependymoma with YAP1-MAMLD1 fusion is a rare, recently described supratentorial neoplasm of childhood, with few cases published so far. We report on 15 pediatric patients with ependymomas carrying YAP1-MAMLD1 fusions, with their characteristic histopathology, immunophenotype and molecular/cytogenetic, radiological and clinical features. The YAP1-MAMLD1 fusion was documented by RT-PCR/Sanger sequencing, and tumor genomes were studied by molecular inversion probe (MIP) analysis. Read More

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http://dx.doi.org/10.1111/bpa.12659DOI Listing
September 2018
20 Reads
3.840 Impact Factor

Tumor Thickness and Modified Clark Level in Canine Cutaneous Melanocytic Tumors.

Vet Pathol 2018 Sep 24:300985818798094. Epub 2018 Sep 24.

1 Department of Veterinary Medicine, University of Perugia, Perugia, Italy.

Breslow thickness and Clark level are prognostic factors for human cutaneous melanomas. Breslow thickness is measured with an ocular micrometer from the top of the granular layer of the epidermis to the deepest invasive cell across the broad base of the tumor, while Clark level is based on the anatomical level of invasion through the layers of the dermis. Because of the anatomical differences between humans and dogs, we evaluated the tumor thickness and a modified Clark level in 77 canine primary cutaneous melanocytic tumors. Read More

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http://dx.doi.org/10.1177/0300985818798094DOI Listing
September 2018

Granular cell tumor in a premenstrual female breast.

Clin Imaging 2018 Nov - Dec;52:334-336. Epub 2018 Sep 9.

University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390, United States of America. Electronic address:

Granular cell tumor is an exceedingly rare pediatric breast mass, derived from Schwann cells which are most commonly observed in the oral cavity, skin, and subcutaneous tissue. When they occur in the breast, they can mimic intrinsic breast masses. Most cases are benign, but malignant cases have been reported. Read More

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http://dx.doi.org/10.1016/j.clinimag.2018.09.003DOI Listing
January 2019
3 Reads

Latest Advances in the Diagnosis and Treatment of Large Granular Lymphocytic Leukemia.

Am Soc Clin Oncol Educ Book 2018 May(38):616-625

From the Department of Hematology, Pontchaillou University Hospital, Rennes, France; and INSERM U1414-CIC, Rennes 1 University, Rennes, France.

Large granular lymphocyte (LGL) leukemia has been recognized in the World Health Organization classifications among mature T cell and natural killer cell neoplasms and is divided into three categories. Chronic T cell leukemia and natural killer cell lymphocytosis can be considered as a similar spectrum of an indolent disease characterized by cytopenias and autoimmune conditions. The last category, aggressive natural killer cell LGL leukemia is very rare, related to Epstein-Barr virus, and seen mainly in young Asian people. Read More

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http://dx.doi.org/10.1200/EDBK_200689DOI Listing
May 2018
2 Reads

Granular cell tumor: A report of three cases and review of literature.

Cancer Biomark 2018 ;23(2):173-178

Department of Obstetrics and Gynecology, The Hongqi Affiliated Hospital of Mudanjiang Medical College, Mudanjiang 157000, Heilongjiang, China.

Objective: In order to improve the understanding of granular cell tumor and avoid missing the best time of treatment, we report three patients with rare granular cell tumors admitted to our hospital in the past 10 years.

Methods: The characteristics, methods of treatment, postoperative pathological results and follow-up results of three cases of granular cell tumor were analyzed; and literatures related to granular cell tumors were reviewed.

Results: All patients underwent surgical treatment, and the excised lesions were sent to the laboratory for testing. Read More

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http://www.medra.org/servlet/aliasResolver?alias=iospress&am
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http://dx.doi.org/10.3233/CBM-170556DOI Listing
February 2019
5 Reads

Granular cell astrocytoma: an aggressive IDH-wildtype diffuse glioma with molecular genetic features of primary glioblastoma.

Brain Pathol 2018 Sep 17. Epub 2018 Sep 17.

Department of Pathology, Johns Hopkins University, Baltimore, MD.

Granular cell astrocytoma (GCA) is a rare adult infiltrating glioma subtype. We studied a series of 39 GCAs. Median age of presentation was 57. Read More

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http://doi.wiley.com/10.1111/bpa.12657
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http://dx.doi.org/10.1111/bpa.12657DOI Listing
September 2018
2 Reads

Mesenchymal Stromal Cells and Natural Killer Cells: A Complex Story of Love and Hate.

Curr Stem Cell Res Ther 2019 ;14(1):14-21

Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Universite Libre de Bruxelles (ULB), Campus Erasme, Brussels, Belgium.

Mesenchymal stromal cells (MSCs), characterized by both multidifferentiation potential and potent immunomodulatory capacity, represent a promising, safe and powerful cell based-therapy for repairing tissue damage and/or treating diseases associated with aberrant immune responses. Natural killer (NK) cells are granular lymphocytes of the innate immune system that function alone or in combination with other immune cells to combat both tumors and virally infected cells. After their infusion, MSCs are guided by host inflammatory elements and can interact with different immune cells, particularly those of the innate immune system. Read More

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http://dx.doi.org/10.2174/1574888X13666180912125736DOI Listing
January 2019

The role of a monoclonal antibody 11C8B1 as a diagnostic marker of IDH2-mutated sinonasal undifferentiated carcinoma.

Mod Pathol 2019 Feb 11;32(2):205-215. Epub 2018 Sep 11.

Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.

IDH2 R172 mutations occur in >80% sinonasal undifferentiated carcinomas ("SNUC") and ~80% of these are R172S and R172T variants. We examined the utility of the monoclonal antibody 11C8B1 to IDH2 R172S in IDH2 R172-mutated tumors to establish an immunohistochemistry protocol as a surrogate method for IDH2 R172S mutation detection. Eighty-eight formalin-fixed paraffin-embedded tumors including 42 sinonasal tumors and a variety of IDH1/2-mutated malignancies were tested by immunohistochemistry. Read More

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http://dx.doi.org/10.1038/s41379-018-0126-3DOI Listing
February 2019
10 Reads