535 results match your criteria Case reports in pathology[Journal]


Cutaneous Myoepithelioma: An Unusual Tumor in the Hand.

Case Rep Pathol 2020 14;2020:3747013. Epub 2020 Jun 14.

Facultad de Ciencias Médicas de la Salud y la Vida, Escuela de Medicina, Docencia y Departamento de Investigación, Universidad Internacional del Ecuador, Quito, Ecuador.

Cutaneous myoepithelioma (CM) is a rare tumor among the primary skin neoplasms. We present the case of a patient with a diagnosis of CM in the right hypothenar region. Histological study showed a proliferation of myoepithelial cells with a solid, reticular growth pattern in a chondromyxoid stroma. Read More

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http://dx.doi.org/10.1155/2020/3747013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7313169PMC

Synovial Sarcoma of the Hand.

Case Rep Pathol 2020 5;2020:8491864. Epub 2020 Jun 5.

Department of Pathology, Anatomy and Laboratory Medicine (PALM), Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, Morgantown, West Virginia, USA.

The incidence of synovial sarcoma is 1.548 per 1,000,000. Synovial sarcoma localized to the palmar surface should, therefore, be considered extremely rare. Read More

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http://dx.doi.org/10.1155/2020/8491864DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7293724PMC

The Rare Case of an Adult-Onset Xanthogranuloma of the Paranasal Sinuses: A Histological Dilemma.

Case Rep Pathol 2020 8;2020:2847821. Epub 2020 Jun 8.

Department of ENT, Northwick Park Hospital, UK.

Xanthogranuloma is a rare benign tumour, part of the non-Langerhans cell histiocytosis group, uncommon in adults and even less common in the paranasal sinuses. Despite its benign nature, it mimics neoplasm due to its local effects which can have serious functional consequences depending on the anatomical location. We present the rare case of a young lady who presented insidiously with a maxillary sinus xanthogranuloma and was treated with endoscopic resection. Read More

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http://dx.doi.org/10.1155/2020/2847821DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7301186PMC

Placental Findings in Lysosomal Storage Disease Diagnosis: A Case Report of Galactosialidosis.

Case Rep Pathol 2020 30;2020:8181056. Epub 2020 May 30.

Department of Pathology, UZA, Wilrijkstraat 10, 2650 Edegem, Belgium.

. Lysosomal storage disorders (LSDs) are rare diseases with more than 50 different entities described today. The spectrum of phenotypes varies from severe to lethal and early-onset disease to mild and late onset. Read More

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http://dx.doi.org/10.1155/2020/8181056DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277025PMC

Breast Implant-Associated Anaplastic Large Cell Lymphoma.

Case Rep Pathol 2020 28;2020:2157485. Epub 2020 May 28.

Department of Breast Surgery, Burnley General Hospital, Casterton Avenue, Burnley BB10 2PQ, UK.

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare, non-Hodgkin lymphoma which arises within the capsules of breast implants. These particular tumours have expression of CD30 and are negative for Anaplastic Lymphoma Kinase (ALK). Here, we report a case of BIA-ALCL in a 48-year-old woman post breast reconstruction. Read More

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http://dx.doi.org/10.1155/2020/2157485DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7275238PMC

Medullary Thyroid Carcinoma Presenting as Metastatic Disease to the Breast.

Case Rep Pathol 2020 22;2020:6138409. Epub 2020 May 22.

Department of Pathology and Microbiology, University of Nebraska Medical Center, USA.

Medullary thyroid carcinoma (MTC) is a neuroendocrine tumor that is derived from C cells of the thyroid gland. It is a rare aggressive tumor, known to metastasize to lymph nodes, liver, bones, and lungs. A 41-year-old female, who presented with a breast mass, was initially diagnosed with invasive ductal carcinoma. Read More

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http://dx.doi.org/10.1155/2020/6138409DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7262663PMC

Neuronal Differentiation in a Pituitary Macroadenoma with Focal Small Blue Round Cell Morphology: Report of a Rare Pattern.

Authors:
Hisham Alkhalidi

Case Rep Pathol 2020 29;2020:6450930. Epub 2020 Apr 29.

Department of Pathology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Ganglion cell-containing pituitary adenomas that are neurofilament protein-positive are the exceedingly rare form of pituitary ganliocytomas. We report a case of a 23-year-old male patient who presented with a clinical picture of acromegaly in addition to raised prolactin level. Histopathology showed areas exhibiting pseudopapillary and solid proliferation of round and monotonous blue cells. Read More

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http://dx.doi.org/10.1155/2020/6450930DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232727PMC

Chondro-Osseous Metaplasia in Ependymoma: A Rare Histopathological Finding.

Case Rep Pathol 2020 5;2020:1528698. Epub 2020 May 5.

Diagnostic Neuroradiology Department, King Faisal Specialist Hospital, Dr. Fakeeh Hospital, Jeddah, Saudi Arabia.

Ependymoma is a circumscribed glioma composed of uniform glial cells with bland nuclei in a fibrillary matrix. It is characterized by the presence of perivascular pseudorosettes. Unusual histopathological findings have rarely been reported in ependymomas, 0. Read More

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http://dx.doi.org/10.1155/2020/1528698DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232711PMC

Pulmonary Alveolar Microlithiasis: An Isolated Case in a Hispanic Male.

Case Rep Pathol 2020 27;2020:6247920. Epub 2020 Mar 27.

Department of Pathology and Laboratory Medicine, University of Texas Health, 7703 Floyd Curl Drive, MC#7750, San Antonio, Texas 78229, USA.

Pulmonary alveolar microlithiasis (PAM) is an uncommon hereditary lung disease characterized by widespread deposition of calcium phosphate microliths within the alveolar spaces. It is considered an autosomal recessive disease with a mutation in a gene encoding a sodium phosphate cotransporter. The imaging findings in the early phase of disease can be mistaken for miliary tuberculosis or sarcoidosis. Read More

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http://dx.doi.org/10.1155/2020/6247920DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7204375PMC

Erdheim-Chester Disease and Small Lymphocytic Lymphoma Collision Tumour Presenting as a Perirenal Mass.

Case Rep Pathol 2020 14;2020:3081824. Epub 2020 Apr 14.

Centre Hospitalier de l'université de Montréal (CHUM), 1100, rue Sanguinet, 7th Floor, F Pavillon, (Québec), Montréal, Canada H2X 0C1.

Background: Erdheim-Chester disease is a rare histiocytic neoplasm associated with MAPK pathway mutations. Disease manifestation is variable often involving many different organs, mainly bone, retroperitoneum, the heart, and the central nervous system. Histological findings include foamy histiocytes in a fibrous stroma with scattered inflammatory infiltrate. Read More

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http://dx.doi.org/10.1155/2020/3081824DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180427PMC

Primary Angiosarcoma of the Thyroid in an Asian Woman: A Case Report with Review of the Literature.

Case Rep Pathol 2020 31;2020:9068506. Epub 2020 Mar 31.

Department of General Surgery, Kuang Tien General Hospital, Dajia, No. 321, Jingguo Rd., Dajia Dist., Taichung City 437, Taiwan.

Primary thyroid angiosarcoma is a rare malignant tumor and characterized by its prevalence in Alpine regions of Central Europe, close relation to longstanding goiter, and aggressive clinical course with dismal prognosis. We describe the case of an 83-year-old Chinese female who lives in the coastal area of Taiwan. She came to our hospital due to a progressively enlarged mass at her anterior neck. Read More

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http://dx.doi.org/10.1155/2020/9068506DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7150700PMC

Masson's Tumor of the Hand: An Uncommon Histopathological Entity.

Case Rep Pathol 2020 18;2020:4348629. Epub 2020 Mar 18.

Department of Pathology School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Masson's tumor or Masson's hemangioma, more precisely termed intravascular papillary endothelial hyperplasia (IPEH), is an uncommon benign vascular lesion of the skin and subcutaneous tissues which can be frequently confused with angiosarcoma. Although relatively rare, its accurate diagnosis is essential since it can clinically be similar to both benign and malignant lesions. We present a 39-year-old man with a round bulging arising from the left palm side of the hand with gradual growth in the last 5 months and on and off tenderness. Read More

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http://dx.doi.org/10.1155/2020/4348629DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7136786PMC

Ovarian Mixed Malignant Brenner-Mucinous Tumor with Signet Ring Cells.

Case Rep Pathol 2020 26;2020:2134546. Epub 2020 Mar 26.

Department of Pathology, McGill University, Montreal, Canada.

Mucinous carcinomas with signet ring cells in the ovary, particularly those composed predominantly of signet ring cells, are extremely rare, and in vast majority of cases, they represent metastasis from another site such as the stomach, appendix, pancreaticobiliary tract, bladder, and breast (Hristov et al., 2007, Kiyokawa et al., 2006, Vang et al. Read More

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http://dx.doi.org/10.1155/2020/2134546DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7136787PMC

Vulval Intestinal/Enteric Heterotopia in a Patient with Crohn's Disease.

Case Rep Pathol 2020 19;2020:6203826. Epub 2020 Mar 19.

Department of Pathology, Erasme University Hospital/Curepath, ULB, Brussels, Belgium.

Intestinal/enteric heterotopia of the vulva is an extremely rare disease with only 3 cases described in the literature. We report here an unusual case of this disease occurring in a 26-year-old patient in a context of Crohn's disease. To the best of our knowledge, such type of association has not been previously described. Read More

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http://dx.doi.org/10.1155/2020/6203826DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7115058PMC

Large Cell Calcifying Sertoli Cell Tumor with Macrocalcification in a Partially Resected Testis.

Case Rep Pathol 2020 18;2020:5279013. Epub 2020 Mar 18.

Department of Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.

Large cell calcifying Sertoli cell tumors (LCCSCTs) are extremely rare, with less than 100 tumors being described to date. Most of the tumors are benign with a few malignant cases, and aggressive behavior is infrequent. These tumors are a type of Sertoli cell tumor, and these tumors comprise less than 0. Read More

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http://dx.doi.org/10.1155/2020/5279013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7104315PMC

Hypopharyngeal Dedifferentiated Liposarcoma in the Era: A Case Report and Short Review.

Case Rep Pathol 2020 11;2020:2968467. Epub 2020 Mar 11.

Department of Pathology, University of Arizona, 1501 N. Campbell Ave, Tucson, AZ 85724, USA.

Pharyngeal liposarcomas are very rare; still more rare are dedifferentiated liposarcomas in the pharynx. An 82-year-old man presented with dysphagia, voice changes, weight loss, nasal regurgitation of liquids, and coughing spells. A 3. Read More

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http://dx.doi.org/10.1155/2020/2968467DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7086435PMC

Metastatic Renal Cell Carcinoma to the Testis: A Clinicopathologic Analysis of Five Cases.

Case Rep Pathol 2020 2;2020:9394680. Epub 2020 Mar 2.

Department of Pathology, Vancouver General Hospital, Vancouver, BC, Canada.

The testicular spread of renal cell carcinoma is extremely rare. Five cases of renal cell carcinoma metastatic to the testis are described. The patients ranged from 45 to 81 years of age. Read More

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http://dx.doi.org/10.1155/2020/9394680DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7073490PMC

Primary Epithelioid Angiosarcoma of the Uterus: A Rare Tumor with Very Aggressive Behavior.

Case Rep Pathol 2020 22;2020:5461782. Epub 2020 Feb 22.

Department of Pathology, University of Illinois at Chicago, Illinois, USA.

Angiosarcoma is a high-grade vascular tumor arising from endothelial cells of blood vessels. It represents less than 1% of the mesenchymal tumors. Uterine angiosarcoma is an extremely rare tumor with less than 25 cases reported in the literature. Read More

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http://dx.doi.org/10.1155/2020/5461782DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7060455PMC
February 2020

Leiomyoma of the Cheek.

Case Rep Pathol 2020 19;2020:8474905. Epub 2020 Feb 19.

Department of Oral Pathology, Barros Barreto Hospital, Belém, PA, Brazil.

Leiomyomas are rare benign tumors that grow in the tunica media of smooth muscle cells. Leiomyomas occur most frequently in the uterus or gastrointestinal tract and only very rarely in the area of the cheek. This study reports on a rare case of a leiomyoma in the cheek of a 43-year-old woman, who presented with a well-circumscribed, asymptomatic, mobile swelling in the right cheek. Read More

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http://dx.doi.org/10.1155/2020/8474905DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7053474PMC
February 2020

Late Recurrence in Ovarian Dysgerminoma Presenting as a Primary Retroperitoneal Tumor: A Case Report and Review of the Literature.

Case Rep Pathol 2020 13;2020:4737606. Epub 2020 Feb 13.

Department of Obstetrics and Gynecology, Faculty of Medicine, University of Miyazaki, Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan.

Ovarian dysgerminoma is a rare type of germ cell tumor. The majority of patient relapses occur within 2 years of diagnosis. Here, we report the case of a 74-year-old woman with a history of ovarian dysgerminoma 39 years earlier. Read More

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http://dx.doi.org/10.1155/2020/4737606DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7042520PMC
February 2020

Cholangiolytic Changes in Statin-Induced Liver Injury.

Case Rep Pathol 2020 13;2020:9650619. Epub 2020 Feb 13.

Department of Pathology and Laboratory Medicine, UT Health San Antonio, 7703 Floyd Curl Drive, San Antonio, Texas 78229-3900, USA.

Atorvastatin is a commonly used oral cholesterol-lowering agent. Side effects associated with statin therapy include arthralgia, myalgia, dyspepsia, weakness, and headache. Prospective and retrospective studies of drug-induced liver injury have identified statin-induced hepatotoxicity, with atorvastatin being the most commonly cited. Read More

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http://dx.doi.org/10.1155/2020/9650619DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040411PMC
February 2020

Collision Glial Neoplasms Arising in an Ovarian Mature Cystic Teratoma: A Rare Event.

Case Rep Pathol 2020 3;2020:7568671. Epub 2020 Feb 3.

Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia.

Germ cell neoplasms represent around 20% of all ovarian tumors. They most frequently affect children and young adults. Mature cystic teratoma is a common benign ovarian neoplasm comprising about 95% and is made up of all three germ cell embryonic layers. Read More

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http://dx.doi.org/10.1155/2020/7568671DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7021464PMC
February 2020

Histopathological Findings Related to ORISE™ Injectable Submucosa Lifting Agent Used in the Endoscopic Mucosal Resection of Bowel Neoplasms: A Review of Three Cases.

Case Rep Pathol 2020 29;2020:6918093. Epub 2020 Jan 29.

Department of Pathology, Baptist MD Anderson Cancer Center, Jacksonville FL 31522, USA.

The use of nonsaline injectable lifting agents is now routine in the performance of endoscopic mucosal resection of bowel neoplasms (EMR). These agents are used to elevate the mucosa from the muscularis propria and permit more a complete resection of the lesion while mitigating risk of possible thermal injury to the bowel wall and thus preventing perforation. After injection, these new agents, which are replacing normal saline, often remain present in the tissues for some time following the procedure and may be identified in the resection specimens where they may mimic a number of other conditions such as mucin pools, lymphangiomas, granulomatous inflammation, and amyloid deposition. Read More

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http://dx.doi.org/10.1155/2020/6918093DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013285PMC
January 2020

Meningothelial Meningioma Component in a Prepubertal Testicular Teratoma.

Case Rep Pathol 2020 20;2020:6495321. Epub 2020 Jan 20.

Department of Paediatric Surgery, AIIMS, Patna, India.

Teratomas are nonseminomatous germ cell tumors composed of elements derived from more than one germinal layers (endoderm, mesoderm, and ectoderm). Malignant transformation of teratoma in the testis is well known; however, benign somatic neoplasm arising in a testicular teratoma is a rare occurrence. We report a case of meningothelial variant of meningioma arising in a pure and mature teratoma of the testis in a 5-year-old boy. Read More

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http://dx.doi.org/10.1155/2020/6495321DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6995479PMC
January 2020

() Alterations in Low-Grade Gliomas: Report of a Novel Gene Fusion Partner in a Pilocytic Astrocytoma and Review of the Literature.

Case Rep Pathol 2020 30;2020:5903863. Epub 2020 Jan 30.

Department of Pathology, Division of Neuropathology, University of Washington, Seattle, WA, USA.

Pilocytic astrocytoma is a low-grade glial neoplasm of the central nervous system (CNS) that tends to occur in the pediatric population and less commonly presents in adults. Hereditary pilocytic astrocytoma is often associated with germline genetic alterations in the tumor suppressor , the gene responsible for the syndrome neurofibromatosis type 1. Sporadic pilocytic astrocytoma frequently harbors somatic alterations in , with rare pilocytic astrocytomas containing alterations in and . Read More

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http://dx.doi.org/10.1155/2020/5903863DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013287PMC
January 2020

Primary Intraosseous Synovial Sarcoma with Molecular Confirmation: Expanding and Clarifying the Spectrum of This Rare Neoplasm.

Case Rep Pathol 2020 28;2020:5492754. Epub 2020 Jan 28.

Department of Anatomic Pathology, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA.

Synovial sarcoma is a well-known malignant tumor usually originating within deep soft tissues of the lower extremities of adolescents and young adults. Rare radiologically confirmed examples of primary bone synovial sarcoma have been documented, generally in isolated case reports. Herein, we report two cases of primary intraosseous synovial sarcoma, with molecular confirmation, involving the left humerus of a 45-year-old female and the right fourth metatarsal bone in a 36-year-old male. Read More

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http://dx.doi.org/10.1155/2020/5492754DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7011484PMC
January 2020

Thyroid-Like Low-Grade Nasopharyngeal Papillary Adenocarcinoma with Biphasic Histology.

Case Rep Pathol 2020 16;2020:3275916. Epub 2020 Jan 16.

Department of Pathology, University of South Alabama, 307 N University Blvd, Mobile, AL 36688, USA.

Thyroid-like low-grade nasopharyngeal papillary adenocarcinoma (TL-LGNPPA) is a rare primary adenocarcinoma of nasopharynx. The immunohistochemical pattern of this tumor is similar to that of papillary thyroid carcinoma making this neoplasm a challenging diagnosis. A case of TL-LGNPPA with biphasic morphology is presented. Read More

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http://dx.doi.org/10.1155/2020/3275916DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6988662PMC
January 2020

Primary Myiasis in Surgical Wound of Mandible Symphisis Fracture.

Case Rep Pathol 2019 30;2019:5393405. Epub 2019 Dec 30.

Clinical Hospital of the Federal University of Uberlândia, Uberlândia, Brazil.

A 42 year old patient was referred to the Department of Oral and Maxillofacial Surgery of the Federal University of Uberlândia, for treatment of mandibular fractures (condyles and symphysis), a victim of a run over. The symphysis was surgically approached, using as surgical access the pre-existing laceration in the submental region. Five days after discharge, the patient returned with dehiscence of the wound and physical examination showed infestation by larvae in the symphysis. Read More

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http://dx.doi.org/10.1155/2019/5393405DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955112PMC
December 2019

Pulmonary Mucormycosis: A Case Report of a Rare Infection with Potential Diagnostic Problems.

Case Rep Pathol 2020 6;2020:5845394. Epub 2020 Jan 6.

Department of Pathology, Faculty of Applied Medical Sciences, Umm Al Qura University, Makkah, Saudi Arabia.

Pulmonary mucormycosis is a relatively rare pulmonary fungal disease, which is difficult to diagnose early and lacks effective treatment. It is seen in patients with hematological malignancies, diabetes mellitus, and immunocompromised states. The diagnosis depends primarily on the detection of fungi in lung tissue. Read More

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http://dx.doi.org/10.1155/2020/5845394DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6973180PMC
January 2020

Advanced Thyroid Follicular Carcinoma in a Pregnant Woman.

Case Rep Pathol 2019 28;2019:3064624. Epub 2019 Dec 28.

Pathologist, Department of Pathology, Botucatu School of Medicine, São Paulo State University (FMB UNESP) and São Luiz/D'Or Hospital, São Paulo, Brazil.

The diagnostic and therapeutic approach for pregnant women with thyroid nodules can present a challenge, especially concerning surgical procedures. In the context of malignant diagnosis, by fine needle aspiration (FNA), during pregnancy, the uncertainty lies in performing surgery. This article reports the case of a 41-year-old pregnant woman in her first gestation, who sought medical care complaining of right shoulder pain. Read More

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http://dx.doi.org/10.1155/2019/3064624DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6949678PMC
December 2019

Adrenal Cavernous Hemangioma: A Rarely Perceived Pathology-Case Illustration and Review of Literature.

Case Rep Pathol 2019 17;2019:8463890. Epub 2019 Dec 17.

Department of Surgery, Division of Urology, American University of Beirut-Medical Center, Beirut 1107 2020, Lebanon.

Cavernous hemangiomas are endothelial tumors that rarely affect the adrenal glands. Most of these tumors remain silent and are incidentally found on abdominal imaging. Hardly ever, these tumors are endocrinologically functional. Read More

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http://dx.doi.org/10.1155/2019/8463890DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6944974PMC
December 2019

A Challenging Case of Mammary Analogue Secretory Carcinoma: Case Study with Ultrastructural and Cytogenetic Correlation.

Case Rep Pathol 2019 17;2019:7468691. Epub 2019 Dec 17.

Department of Pathology and Molecular Medicine, McMaster University/St. Joseph's Hospital, Hamilton Regional Laboratory Medicine Program, Hamilton, Ontario, Canada.

Mammary analogue secretory carcinoma (MASC) is a rare salivary gland tumor analogous to secretory carcinoma of the breast. The diagnosis of MASC can be challenging due to substantial morphologic and immunohistochemical similarities with other salivary gland tumors. The differential diagnosis of MASC is broad and includes intraductal carcinoma, acinic cell carcinoma, and adenocarcinoma, not otherwise specified. Read More

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http://dx.doi.org/10.1155/2019/7468691DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939431PMC
December 2019

Endocarditis-Associated Glomerulonephritis Complicated by anti-Coagulant Nephropathy and Renal Amyloidosis.

Case Rep Pathol 2019 17;2019:6198380. Epub 2019 Dec 17.

Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, USA.

Kidney injury is a well-known sequelae of infectious endocarditis. Various types of kidney injury can be seen, including endocarditis-associated glomerulonephritis, and may affect nearly half of the patients with infectious endocarditis. species are an infrequently documented cause of endocarditis. Read More

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http://dx.doi.org/10.1155/2019/6198380DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6942730PMC
December 2019

Cryptic Early Gastric Carcinoma in Gastric Stump: Challenges in Diagnostic Evaluation.

Case Rep Pathol 2019 17;2019:1794370. Epub 2019 Dec 17.

Professor of Pathology, Gastroenterology and Hepatology, Department of Pathology, Rush University Medical Center, 1750 W. Harrison St., Suite 570, Chicago, IL 60612, USA.

Partial gastrectomy, performed for any indication, is a well-recognized risk factor for carcinoma developing in the gastric remnant (so-called "gastric stump carcinoma"). In symptomatic patients with gastro-enteric anastomosis, it is a common practice to endoscopically evaluate the patency and the status of the anastomosis and procure biopsy samples when endoscopic abnormalities are noted. We describe a case with Billroth I gastroduodenal anastomosis with oozing and friability at the anastomosis site which was biopsied. Read More

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http://dx.doi.org/10.1155/2019/1794370DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6935802PMC
December 2019

Sagittal Craniosynostosis with Uncommon Anatomical Pathologies in a 56-Year-Old Male Cadaver.

Case Rep Pathol 2019 8;2019:8034021. Epub 2019 Dec 8.

Center for Anatomical Science and Education, Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA.

Sagittal craniosynostosis (CS) is a pathologic condition that results in premature fusion of the sagittal suture, restricting the transverse growth of the skull leading in some cases to elevated intracranial pressure and neurodevelopmental delay. There is still much to be learned about the etiology of CS. Here, we report a case of 56-year-old male cadaver that we describe as sagittal CS with torus palatinus being an additional anomaly. Read More

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http://dx.doi.org/10.1155/2019/8034021DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925784PMC
December 2019

Herpes Simplex Virus Pneumonia: Importance of Aspiration Etiology.

Case Rep Pathol 2019 10;2019:7623576. Epub 2019 Dec 10.

Department of Diagnostic Pathology, Shimada Municipal Hospital, Shimada, Shizuoka, Japan.

Herpes simplex virus (HSV) pneumonia caused by aspiration from the oropharyngeal exudates is described. An 89-year-old Japanese male in a poor performance state complained of appetite loss followed by difficulty in swallowing, and bilateral pulmonary infiltrates with interstitial reactions were radiologically pointed out. Antibiotics administration was ineffective, and he died on the 6th day of hospitalization. Read More

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http://dx.doi.org/10.1155/2019/7623576DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925760PMC
December 2019

Pancreatic Inflammatory Pseudotumor-Like Follicular Dendritic Cell Tumor.

Case Rep Pathol 2019 5;2019:2648123. Epub 2019 Dec 5.

Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA.

Follicular dendritic cell sarcoma (FDCS) is a rare and underdiagnosed malignant neoplasm which characteristically presents as a solitary, slow-growing mass with no discrete symptoms. Histologically, lymphocytes and spindle cells featuring large nucleoli in a whorled pattern are usually seen. FDCS is classically found in cervical and axillary lymph nodes, with occasional involvement of extranodal sites. Read More

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http://dx.doi.org/10.1155/2019/2648123DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915151PMC
December 2019

Gastroblastoma in Adulthood-A Rarity among Rare Cancers-A Case Report and Review of the Literature.

Case Rep Pathol 2019 28;2019:4084196. Epub 2019 Nov 28.

First Pathology Division, Department of Pathology and Laboratory Medicine, Fondazione IRCCS - Istituto Nazionale dei Tumori, Milan, Italy.

Gastroblastoma (GB) is a rare gastric epithelial-mesenchymal neoplasm, first described by Miettinen et al. So far, all reported cases described the tumor in children or young adults, and similarities with other childhood blastomas have been postulated. We report a case of GB in a 43-year-old patient with long follow up and no recurrence up to 100 months after surgery. Read More

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http://dx.doi.org/10.1155/2019/4084196DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6906822PMC
November 2019

Intestinal Adenocarcinoma Arising from a Mature Cystic Teratoma.

Case Rep Pathol 2019 18;2019:7894581. Epub 2019 Nov 18.

Department of Gynaecological Oncology, Royal Adelaide Hospital, Adelaide, South Australia, Australia.

Mature cystic teratomas are the most common ovarian germ cell tumour and account for 10-20% of all ovarian neoplasms. Malignant transformation of mature cystic teratomas is rare and has an incidence rate of less than 1%. The most common malignancy are squamous cell carcinomas. Read More

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http://dx.doi.org/10.1155/2019/7894581DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6885789PMC
November 2019

Renal Tubular Dysgenesis in a Case of Fetus Acardius Amorphus.

Case Rep Pathol 2019 12;2019:5416936. Epub 2019 Nov 12.

Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany.

Fetus acardius amorphus is a rare congenital malformation characterized by the lack of a functional heart, the presence of a bivascular umbilical cord, as well as a developed and organized skeletal system and partially organized inner organs. Fetus acardii mostly occur in multiple gestations. The pathogenesis of this entity is not clarified yet. Read More

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http://dx.doi.org/10.1155/2019/5416936DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6875321PMC
November 2019

Somatic Malignant Transformation of a Testicular Teratoma: A Case Report and an Unusual Presentation.

Case Rep Pathol 2019 3;2019:5273607. Epub 2019 Nov 3.

Department of Pathology, University of Toledo Medical Center, Toledo, OH, USA.

Testicular cancer represents 1% of all malignant tumors in men. About 95% of testicular cancers are germ cell tumors (GCTs). These can be divided into nonseminomatous GCTs (NSGCTs) and seminomas. Read More

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http://dx.doi.org/10.1155/2019/5273607DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6874974PMC
November 2019

A Rare Concomitant Oncocytic Adrenocortical Neoplasm and Hepatocellular Carcinoma over a Four-year Duration: A Case Report and Review of Literature.

Case Rep Pathol 2019 20;2019:9137120. Epub 2019 Oct 20.

Department of Anatomic Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia.

Oncocytic adrenocortical neoplasms (OANs) are very rare. Although most cases have benign behavior, the risk of recurrence/metastasis is variable. Based on Lin-Weiss-Bisceglia (LWB) system criteria, OANs can be classified as benign, borderline, or malignant. Read More

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http://dx.doi.org/10.1155/2019/9137120DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854925PMC
October 2019

Is Syringocystadenoma Papilliferum Incidental in This Verrucous Carcinoma?

Case Rep Pathol 2019 22;2019:1783758. Epub 2019 Oct 22.

Medical Director-Dermpath Diagnostics Bay Area of Dermatopathology, Tampa, FL, USA.

This case report presents a case in which a collision tumor consisting of three separate pathological entities-a verrucous carcinoma (VC), syringocystadenoma papilliferum (SCAP), and a basal cell carcinoma (BCC). The presentation of this collision tumor is unexpected. It presented as an exophytic mass on the scalp. Read More

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http://dx.doi.org/10.1155/2019/1783758DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854162PMC
October 2019

Fibrous Extracellular Spheroids in an Endoscopic Ultrasound-Guided Pancreatic Fine Needle Aspiration Correlating to a Gyriform Pancreatic Endocrine Tumor with a Unique Cobblestone Pavement Growth Pattern.

Case Rep Pathol 2019 17;2019:1701072. Epub 2019 Oct 17.

Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA.

Pancreatic neuroendocrine neoplasms (PanNENs) are uncommon tumors. Fine needle aspiration (FNA) samples from PanNENs are typically of high cellularity and lack necrosis. In cytology slides from these tumors, dyscohesive cells are usually reported with variably round to oval to plasmacytoid forms exhibiting coarsely granular chromatin and showing immunoreactivity for synaptophysin. Read More

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http://dx.doi.org/10.1155/2019/1701072DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854169PMC
October 2019

An Unusual Manifestation of Blastic Plasmacytoid Dendritic Cell Neoplasm as a Testicular Tumor.

Case Rep Pathol 2019 7;2019:9196167. Epub 2019 Oct 7.

University of Washington School of Medicine, 1959 NE Pacific Street, Seattle, WA 98195, USA.

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a clinically aggressive hematologic malignancy arising from precursors of plasmacytoid dendritic cells that represent less than 1% of hematological malignancies. BPDCN initially presents with cutaneous involvement and a characteristic immunophenotype of CD4, CD56, and CD123 co-expression. Upon disease progression, BPDCN shows a strong predilection for bone marrow, peripheral blood, and lymph nodes, whereas manifestations in visceral organs are rare. Read More

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http://dx.doi.org/10.1155/2019/9196167DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6800931PMC
October 2019

Primary Chordoma of the Nasopharynx: A Rare Case Report and Review of the Literatures.

Case Rep Pathol 2019 23;2019:3826521. Epub 2019 Sep 23.

Department of Pathology and Laboratory Medicine, Istishari Hospital, Amman, Jordan.

Primary chordoma of the nasopharynx is an extremely rare malignant tumor of notochordal origin in the extra-osseous axial skeleton. It presents as a soft tissue mass without involvement of the skull base bone (clivus) and may mimic other lesions of the nasopharynx. A 26-year-old male patient is presented with nasal obstruction and congestion for the last 3 years. Read More

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http://dx.doi.org/10.1155/2019/3826521DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778900PMC
September 2019

Mixed Acinar-Endocrine Carcinoma (MAEC) Arising in Duodenal Pancreatic Heterotopia.

Case Rep Pathol 2019 2;2019:1713546. Epub 2019 Sep 2.

Department of Pathology, University of Rochester Medical Center, Rochester, NY, USA.

Mixed acinar-endocrine carcinoma (MAEC) of the pancreas is a rare neoplasm, consisting of at least 25%-30% of acinar and neuroendocrine populations. Patients are often middle-aged and present with nonspecific symptoms. Imaging typically reveals a solid lesion in the pancreatic head. Read More

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http://dx.doi.org/10.1155/2019/1713546DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6745162PMC
September 2019
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Localized Biphasic Malignant Peritoneal Mesothelioma with Rhabdoid Features Involving the Liver: Case Report and Review of the Literature.

Case Rep Pathol 2019 28;2019:2732674. Epub 2019 Jul 28.

Department of Pathology and Laboratory Medicine, Hartford Hospital, Hartford, CT, USA.

Introduction: Localized malignant mesotheliomas, defined as sharply circumscribed tumors of the serosal membrane with the microscopic appearance of diffuse malignant mesothelioma, are rare tumors; their behavior and prognosis are uncertain. Intrahepatic mesotheliomas are postulated to arise from mesothelial cells of Glisson's capsule.

Case Presentation: A 69-year-old female with no history of asbestos exposure presented with a one-month history of increasing abdominal pain associated with constitutional symptoms. Read More

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http://dx.doi.org/10.1155/2019/2732674DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6699289PMC
July 2019
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Invasive Pleomorphic-Type Lobular Carcinoma of the Breast Presenting as a Mucinous Carcinoma.

Case Rep Pathol 2019 4;2019:1839208. Epub 2019 Aug 4.

Department of Pathology, McGill University, Canada.

Invasive mucinous carcinoma of the breast is mostly associated with invasive carcinoma of no special type (NST) and sometimes with neuroendocrine type tumors such as solid papillary carcinoma. Extracellular mucin production in invasive lobular carcinoma (ILC) is extremely rare. To the best of our knowledge only 18 such cases have been described in the literature. Read More

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https://www.hindawi.com/journals/cripa/2019/1839208/
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http://dx.doi.org/10.1155/2019/1839208DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6699359PMC
August 2019
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