57 results match your criteria literature paucicellular

Paucicellular Fibroma of the Ascending Aorta.

Aorta (Stamford) 2021 Oct 12. Epub 2021 Oct 12.

Department of Cardiovascular and Thoracic Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, New York.

Primary tumors of the aorta are extremely rare. To the best of our knowledge, herein, we present the first case in the literature of a paucicellular fibroma originating from the aortic wall. Read More

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October 2021

Plexiform fibromyxoma: Review of rare mesenchymal gastric neoplasm and its differential diagnosis.

World J Gastrointest Oncol 2021 May;13(5):409-423

Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY 12208, United States.

Plexiform fibromyxoma (PF) is a very rare mesenchymal neoplasm of the stomach that was first described in 2007 and was officially recognized as a subtype of gastric mesenchymal neoplasm by World Health Organization (WHO) in 2010. Histologically, PF is characterized by a plexiform growth of bland spindle to ovoid cells embedded in a myxoid stroma that is rich in small vessels. The lesion is usually paucicellular. Read More

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Pleural Effusion Secondary to Obstructive Uropathy: A Case of Urinothorax.

Eur J Case Rep Intern Med 2020 16;7(12):001865. Epub 2020 Sep 16.

Internal Medicine Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal.

Urinothorax is a rare type of pleural effusion and usually the result of genitourinary tract disease. An accurate and early diagnosis is crucial as resolution of the underlying pathology is the mainstay of treatment. We report the case of a 69-year-old man who was admitted to the Internal Medicine ward due to obstructive acute kidney injury of unknown origin. Read More

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September 2020

Hepatic Myxoid Leiomyoma: A Very Rare Tumor.

GE Port J Gastroenterol 2020 Aug 18;27(5):352-355. Epub 2019 Dec 18.

Pathology Department, Coimbra University Hospital, Coimbra, Portugal.

Introduction: Mesenchymal tumors of the liver are rare, and in this group, myxoid leiomyomas are even rarer. So far, only 2 cases have been reported in the literature.

Case Presentation: We aim to report the case of a 16-year-old female with a large lesion on the right hepatic lobe, grossly composed of gelatinous and heterogeneous tissue. Read More

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Calcifying Fibrous Tumor of the Mesentery: A Case Report and a Review of the Literature.

Clin Pathol 2020 Jan-Dec;13:2632010X20930689. Epub 2020 Jun 23.

Department of Pathology, Ibn Sina Teaching Hospital, Rabat, Morocco.

Background: Calcifying fibrous tumor (CFT) is a rare entity, with a distinctive histological presentation, initially reported as childhood fibrous tumor with psammoma bodies. It is a benign hypocellular fibrous neoplasm calcifications and lymphoplasmacytic infiltrate. The CFTs may involve many sites, including gastrointestinal tract, pleura, abdominal cavity, and neck. Read More

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Prominent entrapment of respiratory epithelium in primary and metastatic intrapulmonary non-epithelial neoplasms: a frequent morphological pattern closely mimicking adenofibroma and other biphasic pulmonary lesions.

Virchows Arch 2020 Aug 19;477(2):195-205. Epub 2020 Mar 19.

Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University Hospital, Krankenhausstrasse 8-10, 91054, Erlangen, Germany.

As one of the most common target organs for hematogenous spread from diverse cancers, biopsy interpretation of lung tumors is complicated by the challenging question of primary versus metastatic and by frequent entrapment of native respiratory glands. Nevertheless, the literature dealing with this issue is surprisingly sparse and no single study has been devoted to this topic. We reviewed 47 surgical lung specimens of non-epithelial neoplasms (38 metastases, mainly from sarcomas and 9 primary lesions) for frequency and pattern of intralesional epithelial entrapment. Read More

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Desmoplastic melanoma involving head and fingers: diagnostic challenges and clinical characteristics.

Int J Clin Exp Pathol 2019 1;12(10):3862-3869. Epub 2019 Oct 1.

Department of Pathology, Ninghai First Hospital Ningbo, China.

Desmoplastic melanoma (DM) is considered a variant of melanoma, characterized by a paucicellular proliferation of malignant spindled melanocytes with an abundant collagenous or "desmoplastic" stroma and an intense inflammatory response. As DMs lack pigmentation, their appearances vary and can mimic many benign and malignant conditions, thus presenting a diagnostic challenge. Here, we are presenting one case involving the head and two cases involving fingers. Read More

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October 2019

Conjunctival stromal tumour (COST): anterior-segment OCT findings.

BMJ Case Rep 2019 Nov 21;12(11). Epub 2019 Nov 21.

Cornea and External Disease, Disha Eye Hospital, Kolkata, West Bengal, India.

Conjunctival stromal tumour (COST) is a recently described rare conjunctival tumour of mesenchymal origin with only four publications describing a handful of cases thus far. In this report, we describe the anterior-segment optical coherence tomography (AS-OCT) characteristics in a case of COST for the first time, in addition to the clinical and histopathological characteristics. The AS-OCT showed an elevated, dome-shaped hyporeflective homogenous lesion in the conjunctival stroma lined by hyperreflective outer layer with mild posterior shadowing, consistent with histological description of a paucicellular tumour with large myxoid collagenous material inside. Read More

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November 2019

Nodular Fasciitis - Fine Needle Aspiration Cytology Diagnosis and Its Pitfalls, with Review of Literature.

Iran J Pathol 2019 27;14(1):76-82. Epub 2018 Dec 27.

Professor, Dept. of General Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India.

Background And Objective: Nodular fasciitis (NF) is a self-limiting, transient neo- plasm composed of fibroblasts and myofibroblasts. Since it regresses spontaneously, diagnosis by fine needle aspiration (FNA) cytology plays a major role in its management.

Methods: We present a series of 8 cases with either FNA or biopsy diagnosis ofNF, and study the major cytological features with a review of literature on diagnostic criteria and its pitfalls. Read More

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December 2018

Use of adult mesenchymal stromal cells in tissue repair: impact of physical exercise.

Am J Physiol Cell Physiol 2019 10 26;317(4):C642-C654. Epub 2019 Jun 26.

Université de Paris, CNRS, INSERM, Laboratoire de Biologie, Bioingenierie et Bioimagerie Osteoarticulaires (B3OA), Paris, France.

Physical exercise (PE) has unquestionable beneficial effects on health, which likely extend into several organ-to-cell physiological processes. At the cell scale, endogenous mesenchymal stromal cells (MSCs) contribute to tissue repair, although their repair capacities may be insufficient in paucicellular or severely damaged tissues. For this reason, MSC transplantation holds great promise for tissue repair. Read More

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October 2019

Castleman's disease associated with calcifying fibrous tumor: A rare association with review of literature.

J Lab Physicians 2019 Apr-Jun;11(2):171-173

Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya, India.

Castleman's disease is a rare disease characterized by unicentric or multicentric enlargement of the lymph node, and it is mostly of the hyaline vascular type. Calcifying fibrous tumor is a neoplasm characterized by large areas of hyalinized collagen with paucicellular areas along with dystrophic calcification and scattered lymphoplasmacytic infiltrates. There are only five case reports to describe an association between these two entities. Read More

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Calcifying fibrous tumor of the terminal ileum mesentery: Case report.

Medicine (Baltimore) 2018 Dec;97(51):e13351

Landesklinikum Waidhofen an der Ybbs, Department of General Surgery.

Rationale: Calcifying fibrous tumors ("CFT") are recognized as extremely rare mesenchymal tumors with benign biological behavior and low rates of recurrence are seen after removal. The first case of a CFT was reported in 1988 as a possibly inflammatory triggered pseudotumor in deep soft tissue of children. Histologically, the tumor is typically composed of dense hyalinized collagen with paucicellular infiltration of lymphocytes and fibroblasts as well as psammomatous or dystrophic calcifications. Read More

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December 2018

Cytological evaluation in males presenting with bloody nipple discharge, with or without breast mass: Report of two cases depicting two poles of the disease spectrum.

Neelam Sood

Diagn Cytopathol 2019 Feb 24;47(2):121-126. Epub 2018 Oct 24.

Department of Pathology and Lab Medicine, Deen Dayal Upadhyay Hospital, Government of NCT, Delhi, New Delhi, India.

Nipple discharge (ND) either in the presence or in the absence of underlying mass is a very uncommon presentation in males and its bloody nature is still rarer. ND cytology in males has not been reported much in the literature. Spontaneous and expressed ND, however, can be very useful in establishing the diagnosis. Read More

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February 2019

Crystallizing Galactocele: A rare entity-report of two cases.

Diagn Cytopathol 2018 Oct 25;46(10):873-875. Epub 2018 Aug 25.

Department of Pathology, MES Medical College, Perinthalmanna, Kerala, India.

Galactocele is a common lesion occurring during pregnancy or lactation. It is a benign cystic breast lesion containing milk. On Fine Needle Aspiration Cytology, milky fluid is aspirated, and cytology shows paucicellular aspirate with foamy macrophages and occasional apocrine cells in a proteinaceous fluid background. Read More

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October 2018

Cytologic diagnosis of unusual, large multiple cutaneous myxomas in a case of Carney complex.

J Lab Physicians 2018 Jul-Sep;10(3):354-356

Department of Pathology, Seth GS Medical College and KEM Hospital, Acharya Donde Marg, Mumbai, Maharashtra, India.

Cutaneous myxomas are rare benign neoplasms which are frequently associated with Carney complex (CNC). Although more than 500 cases of CNC are reported, there is no literature on cytologic diagnosis of Cutaneous myxomas. An 18-year-old male, with no significant family history, presented with multiple cutaneous swellings, largest measuring 15 cm on the right cheek. Read More

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[Multiple hepatic sclerosed hemangiomas that are difficult to diagnose preoperatively:a case report].

Nihon Shokakibyo Gakkai Zasshi 2018;115(5):485-493

Department of Gastroenterology and Metabolism, Hiroshima University Hospital.

An 83-year-old woman was admitted to our hospital because of a space-occupying lesion (SOL) in the liver. Enhanced computed tomography (CT) showed a nodule measuring 20mm in size in the posterosuperior segment of the right hepatic lobe (S7) and another nodule measuring 14mm in size in the anterosuperior segment of the right hepatic lobe (S8). The margins of these nodules showed faint enhancement in the arterial phase and presented as low-density areas in the equilibrium phase. Read More

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Cytomorphologic Diversity of Papillary Thyroid Carcinoma.

J Cytol 2017 Oct-Dec;34(4):183-187

Department of Pathology, Kasturba Medical College, Manipal University, Manipal, Karnataka, India.

Introduction: Cytologic features of papillary thyroid carcinoma (PTC) have been extensively documented in literature. However, PTC variants can prove to be diagnostically challenging on fine needle aspiration cytology (FNAC).

Aims: To study the FNAC features of PTC and its variants and explore the causes for misdiagnosis. Read More

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November 2017

Whorling-sclerosing meningioma. A review on the histological features of a rare tumor including an illustrative case.

Clin Neurol Neurosurg 2017 Nov 28;162:85-90. Epub 2017 Sep 28.

Neuroacademy Research Group, Memorial Hospital, Department of Neurosurgery, Kaptanpasa Mh, Okmeydani/Sisli, Istanbul, 34384, Turkey.

Whorling-Sclerosing variant of meningioma (WSM) is a very rare variant of meningioma and only 28 cases were previously reported in the English medical literature. The term "whorling" describes different morphological features including psammoma bodies formed by precipitated calcium or by layered whorling sheets of tumor cells in meningothelial meningiomas. In WSM, the sclerosing structures are formed by typical paucicellular or acellular collagen whorls which form the majority of tumor volume. Read More

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November 2017

Cerebellar ependymoma with overlapping features of clear-cell and tanycytic variants mimicking hemangioblastoma: a case report and literature review.

Diagn Pathol 2017 Mar 20;12(1):28. Epub 2017 Mar 20.

Department of Pathology, the First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, 110001, China.

Background: Imaging and histology of clear-cell ependymoma and cerebellum-based hemangioblastoma are similar; distinguishing between them is a diagnostic challenge.

Case Presentation: A 62-year-old Chinese woman presented with an intermittent headache of 8 years' duration. Computed tomography and magnetic resonance imaging revealed a mass in the cerebellum. Read More

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[Clinicopathologic features of dermal nerve sheath myxoma and neurothekeoma: a comparative study].

Zhonghua Bing Li Xue Za Zhi 2016 11;45(11):755-761

Department of Pathology, Jiujiang University Hospital, Jiujiang University Clinical Medical College, Jiujiang 332000, China.

To investigate the clinicopathologic characteristics and differential diagnosis of dermal nerve sheath myxoma (DNSM) and neurothekeoma (NTK). Clinical, pathological features and immunohistochemical profiles in 9 cases of DNSM and 8 cases of NTK were comparatively studied. The literature was reviewed. Read More

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November 2016

Microfluidics enables multiplex evaluation of the same cells for further studies.

Cytopathology 2016 Aug 7;27(4):277-83. Epub 2015 Aug 7.

Department of Pathology and Anatomical Sciences, University at Buffalo, Buffalo, NY, USA.

Objective: The continuous discovery of biomarkers and their evolving use for the diagnosis and guidance of therapy for patients with cancer has increased awareness of the need to triage biospecimens properly. On occasion, cytology samples are the only type of biospecimen available for analysis. Often, the current approach for these latter specimens is cytopathology-centric, with cells limited to examination by bright field microscopy. Read More

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Calcifying Fibrous Tumor of the Gastrointestinal Tract.

Arch Pathol Lab Med 2015 Jul;139(7):943-7

From the Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California.

Calcifying fibrous tumor is a benign mass lesion classically described as a soft tissue tumor. However, a thorough review of the literature reveals that it can occur virtually anywhere, including the tubular gastrointestinal (GI) tract. Its clinical manifestations are variable in the GI tract, and its imaging findings are nonspecific. Read More

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Giant extraluminal leiomyoma of the colon: rare cause of symptomatic pelvic mass.

Int Surg 2015 May;100(5):805-8

1 Department of General Surgery and.

Leiomyomas (LMs) may appear throughout the entire gastrointestinal tract but are rarely seen in the colon-rectum and only 5 of those measured greater than 15 cm in diameter. Pain and palpable abdominal mass are the most common symptoms. Surgical resection is the treatment of choice for most LMs. Read More

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Dermal eosinophilic infiltrate in junctional epidermolysis bullosa.

J Cutan Pathol 2015 Aug 4;42(8):559-63. Epub 2015 Jun 4.

Department of Dermatology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA.

Junctional epidermolysis bullosa (JEB) is a rare genodermatosis characterized by a split in the lamina lucida usually because of mutations in LAMA3, LAMB3 and LAMC2 resulting in absence or reduction of laminin-332. Rare subtypes of JEB have mutations in COL17A1, ITGB4, ITGA6 and ITGA3 leading to reduction or dysfunction of collagen XVII, integrin α6β4 and integrin α3. The classic finding under light microscopy is a paucicellular, subepidermal split. Read More

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Giant peritoneal loose body in the pelvic cavity confirmed by laparoscopic exploration: a case report and review of the literature.

World J Surg Oncol 2015 Mar 24;13:118. Epub 2015 Mar 24.

Department of Colorectal Surgery, Shengjing Hospital, China Medical University, No. 36 SanHao Street, Heping District, Shenyang, Liaoning, 110004, China.

A 51-year-old previously healthy male underwent a routine medical examination. Computed tomography and ultrasonography showed an oval-shaped mass that was about 50 × 40 mm in size in the left iliac fossa. Prior to surgery, the lesion was suspected to be a teratoma with core calcification or stromal tumor derived from the rectosigmoid colon. Read More

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Hyalinizing cholecystitis with features of immunoglobulin G4-related disease-coincidence or an unrecognized association? A case report.

Hum Pathol 2015 Apr 29;46(4):625-8. Epub 2015 Jan 29.

Baptist Memorial Hospital, 6019 Walnut Grove, Memphis, TN 38120, USA; Pathology Group of the Midsouth/Trumbull Laboratories, 7550 Wolf River Blvd, Suite 200, Germantown, TN 38138, USA. Electronic address:

Hyalinizing cholecystitis (HC) is a recently described rare subtype of chronic cholecystitis characterized by dense, paucicellular collagenous transmural fibrosis, which usually replaces the mucosa and muscularis propria. Immunoglobulin (Ig)G4-associated cholecystitis is also a newly described cholecystitis variant characterized by transmural or extramural lymphoplasmacytic inflammation, lymphoid follicles, storiform fibrosis, phlebitis, and increased tissue IgG4-positive plasma cells. We describe a case of cholecystitis in an elderly white man who harbored features of both HC and IgG4-associated cholecystitis. Read More

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Intra-Alveolar Intestinal Epithelium: A Reappraisal of the So-Called Mucinous Goblet-Cell Rich Carcinoma Apropos of Two Cases With Prolonged Follow-up and Literature Review.

Jose Jessurun

Int J Surg Pathol 2015 May 27;23(3):196-201. Epub 2015 Jan 27.

New York Presbyterian Hospital, Weill Cornell Medical Center, New York, NY, USA

Primary pulmonary mucin-rich lesions with abundant goblet cells growing within alveolar spaces are either classified as mucinous adenocarcinoma (previously called mucinous bronchioloalveolar carcinoma) or colloid carcinoma. Some of these lesions display a morphologic pattern characterized by paucicellular discontinuous patches of nonatypical colonic type epithelium attached to alveolar walls without evidence of invasion. Immunohistochemically, these epithelial patches express an intestinal immunophenotype (CD20+, CDX-2+, CK7-, TTF-1-). Read More

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Microcystic/reticular Schwannoma: morphological features causing diagnostic dilemma on fine-needle aspiration cytology.

Am J Case Rep 2014 Dec 4;15:538-42. Epub 2014 Dec 4.

Department of Pathology, University Hospitals of Cleveland and Case Western Reserve University School of Medicine, Cleveland, USA.

Background: Schwannoma is a common, benign, peripheral nerve sheath tumor. Fine-needle aspiration (FNA) has been very useful for diagnosing classic Schwannoma. Recently, a new morphological variant, the so-called microcystic/reticular Schwannoma, has been recognized. Read More

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December 2014

A case report of a renal anastomosing hemangioma and a literature review: an unusual variant histologically mimicking angiosarcoma.

Diagn Pathol 2014 Aug 8;9:159. Epub 2014 Aug 8.

Department of Pathology, Perking University Shenzhen Hospital, Shenzhen, Guangzhou Province, PR China.

Unlabelled: Anastomosing hemangioma, a benign vascular neoplasm histologically simulating angiosarcoma, is newly recognized and has been described primarily in the genitourinary tract. Here, we present a case of renal anastomosing hemangioma originating in the left kidney of a 32-year-old Chinese man with detailed computerized tomography (CT) and enhanced CT image information. The patient had no obvious signs and symptoms. Read More

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Anastomosing hemangioma of the kidney: a case report of a rare subtype of hemangioma mimicking angiosarcoma and review of the literature.

Int J Clin Exp Pathol 2013 15;6(4):757-65. Epub 2013 Mar 15.

Department of Pathology, Ningbo Yinzhou Second Hospital Ningbo, Zhejiang Province, PR China.

Anastomosing hemangioma is a recently described, unusual variant of capillary hemangioma which seems to be unique for the genitourinary system, with a particular proclivity for the kidney. Histologically, it is characterized by a unique sinusoidal architecture reminiscent of splenic parenchyma that can lead to concern for angiosarcoma. We herein report a further case of anastomosing hemangioma originating in the right kidney of a 48-year-old Chinese man. Read More

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October 2013