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International Journal of Surgical Pathology

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https://www.readbyqxmd.com/read/28440090/spermatocytic-tumor-with-sarcoma-a-rare-testicular-neoplasm
#1
Ashley E Stueck, John E Grantmyre, Lori A Wood, Cheng Wang, Jennifer Merrimen
Spermatocytic tumor, formerly known as spermatocytic seminoma, is an uncommon testicular neoplasm which is a distinct clinicopathologic entity from classic seminoma. These tumors are not associated with germ cell neoplasia in situ, other germ cell tumors, or isochromosome 12p. Although typically, these tumors have an excellent prognosis occasional cases are associated with sarcoma and have a very poor prognosis. We present a case of spermatocytic tumor with sarcoma showing a chondrosarcomatous component, discuss the pathologic findings and differential diagnosis and provide follow-up information...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28436290/topography-of-protein-kinase-c-%C3%AE-ii-in-benign-and-malignant-melanocytic-lesions
#2
Konstanin Krasagakis, Eleftheria Tsentelierou, Gregory Chlouverakis, Efstathios N Stathopoulos
BACKGROUND: Protein kinase C βII promotes melanogenesis and affects proliferation of melanocytic cells but is frequently absent or decreased in melanoma cells in vitro. OBJECTIVE: To investigate PKC-βII expression and spatial distribution within a lesion in various benign and malignant melanocytic proliferations. METHODS: Expression of PKC-βII was semiquantitatively assessed in the various existing compartments (intraepidermal [not nested], junctional [nested], and dermal) of benign (n = 43) and malignant (n = 28) melanocytic lesions by immunohistochemistry...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28436289/comparison-of-renal-anastomosing-hemangiomas-in-end-stage-and-non-end-stage-kidneys-a-meta-analysis-with-a-report-of-2-cases
#3
Neslihan Kayisoglu Berker, Aysel Bayram, Serap Tas, Baris Bakir, Yasar Caliskan, Faruk Ozcan, Isin Kilicaslan, Yasemin Ozluk
BACKGROUND: Renal anastomosing hemangioma (RAH) is a very rare distinct entity composed of anastomosing sinusoidal (spleen-like) capillary-sized vessels lined by flat or hobnail endothelial cells. Most of the published cases of RAH occurred in the setting of end-stage renal disease (ESRD). METHODS: We present 2 cases of RAH in ESRD along with a literature review. We compared clinicopathologic features of RAHs in end-stage and non-end-stage kidneys. A meta-analysis was conducted with PubMed and a manual search through references of relevant publications...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28436288/ossifying-fibromyxoid-tumor-of-the-retromolar-trigone-a-case-report-and-systematic-review-of-the-literature
#4
Savvas Titsinides, Nikolaos G Nikitakis, Jason Tasoulas, Argyriοs Daskalopoulos, Lampros Goutzanis, Alexandra Sklavounou
Ossifying fibromyxoid tumor (OFMT) is a mesenchymal neoplasm of uncertain lineage and intermediate biologic behavior. Involvement of the head and neck area is infrequent (10% to 15%) and intraoral presentation is very rare. An OFMT developing in the retromolar trigone of a 13-year-old male is presented, along with a comprehensive review of oral OFMT cases. Among 12 oral OFMTs (including the present case), most patients were male (72.7%), with a mean age of 30.3 (13-67) years. The tumors generally appeared as painless masses of firm or hard consistency (mean diameter 27...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28420306/diffuse-large-b-cell-lymphoma-in-a-patient-with-necrotizing-fasciitis-secondary-to-silicone-biopolymer-implants-in-buttock
#5
Andres Mosquera-Zamudio, Rafael Parra-Medina, Liliana Moreno, German Paez Lopez, Giovanni Montealegre Gomez, Samuel D Morales
No abstract text is available yet for this article.
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28420305/dual-pathology-double-trouble-in-a-colonic-biopsy
#6
Jayashree D Kulkarni, Sanjay A Pai
No abstract text is available yet for this article.
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28420304/ectopic-pacinian-corpuscle-in-the-prostate
#7
Sanjay A Pai
No abstract text is available yet for this article.
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28420303/juvenile-papillomatosis-swiss-cheese-disease-of-breast-in-an-adult-male-with-sequential-diagnoses-of-ipsilateral-intraductal-invasive-and-widely-metastatic-carcinoma-a-case-report-and-review-of-the-disease-in-males
#8
Kartik Viswanathan, Brian McMillen, Esther Cheng, Timothy D'Alfonso, Ami Patel, Syed A Hoda
Juvenile papillomatosis of the breast (JPB, also known as Swiss cheese disease) is a rare ailment that typically afflicts young females, and presents as a mass-forming lesion. The lesional mass usually comprises multiple cysts and duct stasis, amid a variety of proliferative and nonproliferative epithelial changes. The proliferative changes include papillary hyperplasia, florid hyperplasia, and papillary apocrine hyperplasia. Concurrent carcinoma (either in situ or invasive) is present in approximately 10% of cases at presentation, and subsequent carcinoma (either in situ or invasive) is diagnosed in about 10% of patients...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28413913/sertoliform-cystadenoma-of-the-rete-testis-report-of-a-case-and-review-of-the-literature
#9
Arash H Lahouti, Michael Brodherson, Yaniv Larish, Pamela D Unger
Sertoliform cystadenoma is a rare benign tumor of the rete testis with 8 previously reported cases and an additional 14 cases reported in an abstract form. It usually presents with a unilateral scrotal mass, clinically and radiologically indistinguishable from malignant testicular tumors. We report a 39-year-old man who presented with a right testicular mass. The patient underwent radical inguinal orchiectomy. Grossly, no masses were appreciated. After histologic examination with subsequent immunohistochemical staining, a sertoliform cystadenoma of the rete testis was diagnosed...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28413897/fibroadenoma-with-pleomorphic-stromal-giant-cells-it-s-not-as-bad-as-it-looks
#10
Jonathan Wawire, Kamaljeet Singh, Margaret M Steinhoff
Clinically relevant histological categorization of fibroepithelial lesions can be a daunting task, especially in a core needle biopsy. Assessment of stromal nuclear atypia, including nuclear pleomorphism and mitotic activity, is a key morphological feature employed to classify fibroepithelial lesions. We describe a case of fibroadenoma with markedly atypical nuclear features in the stromal cells that led to misclassification as phyllodes tumor in the core needle biopsy. Excision showed a fibroadenoma containing pleomorphic stromal giant cells, with occasional mitotic figures, including atypical forms...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28387148/malignant-triton-tumor-malignant-peripheral-nerve-sheath-tumor-with-rhabdomyoblastic-differentiation-occurring-in-a-vascularized-free-flap-reconstruction-graft
#11
Roopa Ram, Jerad Gardner, Sindhura Alapati, Kedar Jambhekar, Tarun Pandey, Corey Montgomery, Richard Nicholas
Malignant peripheral nerve sheath tumor (MPNST) is a rare form of sarcoma arising from Schwann cells or pluripotent cells of the neural crest. Malignant triton tumor (MTT) is a subtype of MPNST with a component of malignant rhabdomyoblasts in addition to malignant Schwann cells. MPNST and MTT are both aggressive malignancies that most commonly arise from large deep neurofibromas in patients with neurofibromatosis type 1 (NF-1). However, sporadic non-NF-1 cases of MTT have also been reported in the literature...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28382826/water-clear-cell-adenoma-of-the-parathyroid-gland-a-forgotten-cause-of-primary-hyperparathyroidism
#12
Siba El Hussein, Robert Poppiti
Water clear cell adenoma of the parathyroid gland is a rare neoplasm composed of large clear cells with foamy cytoplasm and mild nuclear pleomorphism, compressing the residual nonneoplastic parathyroid tissue. The differential diagnosis includes a variety of neoplasms with clear cell features. In this article, we provide an overview of the entity with a historical perspective, in order to help pathologists in distinguishing it from other neoplasms in their daily practice.
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381154/thyroid-like-follicular-carcinoma-of-the-kidney
#13
Reza Alaghehbandan, Michal Michal, Naoto Kuroda, Ondrej Hes
No abstract text is available yet for this article.
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381153/alk-negative-anaplastic-large-cell-lymphoma-presenting-as-an-extranodal-soft-tissue-mass-with-an-unusual-alveolar-growth-pattern
#14
Badr AbdullGaffar, Rania M Seliem
Anaplastic large cell lymphoma (ALCL) is a T-cell lymphoma which has been recognized to have a variable clinical presentation and a broad spectrum of histomorphologic features. Its variable histomorphologic appearances are sometimes diagnostically challenging for the pathologists since they can mimic sarcomas, melanomas and undifferentiated carcinomas. To our knowledge, a previous case of axillary soft-tissue mass of ALK-positive ALCL with an alveolar growth pattern has been so far reported in the literature...
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381152/intralymphatic-blasts
#15
Gerardo Ferrara, Maria Paola Mariani, Giuliana Crisman
No abstract text is available yet for this article.
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381151/omental-arteriopathy-in-primary-atypical-hemolytic-uremic-syndrome
#16
Natalie Ellington, Matthias T F Wolf, Jennifer Kasten, Dinesh Rakheja
No abstract text is available yet for this article.
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381150/incidental-prostate-adenocarcinoma-in-cystoprostatectomy-specimens
#17
Emily R Filter, Manal Y Gabril, Jose A Gomez, Peter Z T Wang, Joseph L Chin, Jonathan Izawa, Madeleine Moussa
BACKGROUND: The rate of incidental prostate adenocarcinoma (PCa) detection in radical cystoprostatectomy (RCP) varies widely, ranging from 15% to 54%. Such variability may be explained by institutional differences in prostate grossing protocols. Either partial or complete submission of the prostate gland in RCP may result in detection of clinically insignificant or significant incidental PCa. The aim of the study was to compare the clinical significance of PCa in RCP specimens in partial versus complete sampling...
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381149/two-unusual-cases-of-oral-lichen-planus-arising-after-oral-squamous-cell-carcinoma
#18
Davide Bartolomeo Gissi, Sofia Asioli, Andrea Gabusi
Autoimmune diseases occur when the immune system fails to recognize self-antigens expressed on the body's own cells and attacks them. Oral lichen planus (OLP) is a chronic autoimmune mucocutaneous disease of the oral cavity characterized by white/red lesions. Considered a potentially malignant disorder, OLP evolution into oral squamous cell carcinoma (OSCC) is still a matter of debate. While chronic autoimmune inflammation is considered a potential risk factor for malignant transformation in many solid tumors, the opposite idea that cancer may trigger autoimmune responses remains controversial...
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381148/egfr-exon-20-insertion-duplication-mutation-in-fibrous-hamartoma-of-infancy-with-predominantly-pseudoangiomatous-pattern-mimicking-giant-cell-fibroblastoma
#19
Natalie Ellington, Jason Y Park, Kathryn King, Shellie Josephs, Dinesh Rakheja
We describe a case of fibrous hamartoma of infancy (FHI) with predominant pseudoangiomatous histologic pattern that harbors a recently described characteristic molecular feature of FHI: EGFR exon 20 insertion/duplication mutation. A left axillary mass of an 8-month-old male was biopsied. Microscopic findings revealed a CD34-positive spindle cell proliferation accompanied by slit like spaces within collagen, mimicking giant cell fibroblastoma. The mass was excised. The vast majority of the mass showed histologic findings similar to the biopsy...
March 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28381147/thyroid-follicular-hyperplasia-associated-with-massive-extracellular-mucin-deposition
#20
Francesco Nesa, Luca Poggi, Stefano Ferrero, Alessandro Del Gobbo
Extensive extracellular mucin deposition is a rare pathological thyroid condition with 6 cases described in literature so far. We report another case of a 67-year-old woman, discussing histopathological features, and review the literature. Our findings showed a diffuse mucin deposition in the stromal compartment of thyroid parenchyma. Histochemical stainings showed positivity for Alcian blue staining, but not for periodic acid-Shiff staining. Our case is peculiar because this mucin deposition was associated with benign nodular hyperplasia, in contrast with the other 6 reports, which described the same stromal alterations associated with benign or malignant thyroid tumors...
March 1, 2017: International Journal of Surgical Pathology
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