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eosinophilic renal cell neoplasms

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https://www.readbyqxmd.com/read/28494807/concordant-clear-cell-mesonephric-carcinoma-of-the-bladder-and-lung-adenocarcinoma-with-clear-cell-features-multiple-primaries-versus-metastatic-neoplasms-a-case-report
#1
Sarmad H Jassim, Amer Khiyami, Jane K Nguyen, Santhi Ganesan, Joseph Tomashefski, Joram Sawady
BACKGROUND: Clear cell carcinoma of the bladder is a rare variant of urinary bladder adenocarcinoma. We report a case of a patient with clear cell carcinoma of the bladder and a concordant right upper lobe pulmonary adenocarcinoma with clear cell features, and we address the role of immunohistochemistry and cytogenetic analysis in distinguishing the two primary malignancies. CASE PRESENTATION: Our patient was a 59-year-old African American woman who presented with hematuria...
May 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28360450/renal-medullary-carcinoma-a-rare-entity
#2
Selahattin Çalışkan, Ali Murat Gökçe, Gülistan Gümrükçü, Mine Önenerk
Renal medullary carcinoma (RMC) is an uncommon aggressive neoplasm of the kidney. RMC is biologically aggressive with a very poor prognosis, and metastasis is seen in up to 95% of the patients at diagnosis or shortly thereafter. The common sites of metastasis are respectively lymph nodes, lungs, livers, and adrenal glands in order of frequency. The presence of poorly differentiated eosinophilic cells in a characteristic fibro-inflammatory stroma is seen in histological examination. The origin and pathogenesis of RMC are unclear...
March 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28315422/sfpq-psf-tfe3-renal-cell-carcinoma-rcc-a-clinicopathologic-study-emphasizing-extended-morphology-and-reviewing-the-differences-between-sfpq-tfe3-rcc-and-the-corresponding-mesenchymal-neoplasm-despite-an-identical-gene-fusion
#3
Xiao-Tong Wang, Qiu-Yuan Xia, Hao Ni, Sheng-Bing Ye, Rui Li, Xuan Wang, Shan-Shan Shi, Xiao-Jun Zhou, Qiu Rao
Xp11 translocation renal cell carcinoma (RCC) with SFPQ/PSF-TFE3 gene fusion is a rare epithelial tumor. Of note, the appearance of the gene fusion does not necessarily mean that it is renal cell carcinoma. The corresponding mesenchymal neoplasms, including Xp11 neoplasm with melanocytic differentiation, TFE3 rearrangement-associated perivascular epithelioid cell tumor (PEComa) and melanotic Xp11 translocation renal cancer, can also harbor the identical gene fusion. However, the differences between Xp11 translocation RCC and the corresponding mesenchymal neoplasm have only recently been described...
March 14, 2017: Human Pathology
https://www.readbyqxmd.com/read/28165631/a-distinctive-low-grade-oncocytic-fumarate-hydratase-deficient-renal-cell-carcinoma-morphologically-reminiscent-of-sdh-deficient-renal-cell-carcinoma
#4
Steven C Smith, Deepika Sirohi, Chisato Ohe, Jonathan B McHugh, Jason L Hornick, Jigna Kalariya, Sushil Karia, Katie Snape, Shirley V Hodgson, Andi K Cani, Daniel Hovelson, Daniel J Luthringer, Guido Martignoni, Ying-Bei Chen, Scott A Tomlins, Rohit Mehra, Mahul B Amin
AIMS: Fumarate hydratase-deficient renal cell carcinoma (FH-deficient RCC) is a high grade, aggressive tubulopapillary carcinoma, arising predominantly in the setting of the hereditary leiomyomatosis-renal cell carcinoma syndrome of familial uterocutaneous leiomyomatosis and deficiency of fumarate hydratase. In contrast, succinate dehydrogenase (SDH)-deficient RCC is a lower grade oncocytic carcinoma with cytoplasmic flocculence/vacuolation and inclusions, arising mostly in individuals harboring germline mutations of subunit B of the SDH complex (SDHB)...
February 6, 2017: Histopathology
https://www.readbyqxmd.com/read/27858882/pigmented-perivascular-epithelioid-cell-tumor-pecoma-arising-from-kidney-a-case-report
#5
Hexi Du, Jun Zhou, Lingfan Xu, Cheng Yang, Li Zhang, Chaozhao Liang
INTRODUCTION: Perivascular epithelioid cell tumor (PEComa) is a mesenchymal neoplasm composed of perivascular epithelioid cells with clear to eosinophilic cytoplasm. Pigmented PEComa arising from kidney is extraordinarily rare and sometimes can exhibit aggressive biological behavior. CASE REPORT: We present here a rare case of pigmented renal PEComa in a 46-year-old female. The patient had complained of lumbago complicated with nausea and vomiting for 2 weeks and therefore was referred to our department...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27795864/histiocytic-sarcoma-in-a-kidney-transplant-patient-a-case-report-and-review-of-the-literature
#6
Maressa Pollen, Siraj El Jamal, Jack Lewin, Varsha Manucha
Objective. Histiocytic sarcoma (HS) is an aggressive neoplasm with only limited number of reported series of cases and rare case reports of occurrence as a posttransplant neoplastic disorder. The etiology and pathogenesis of the disease is unknown and the optimal treatment is still under investigation. We describe an unusual case of HS in a patient with a remote history of kidney transplant. Method and Results. A 54-year-old male with a remote history of renal transplantation under maintenance immunosuppression presented with features of sepsis...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27640314/tuberous-sclerosis-complex-hamartin-and-tuberin-expression-in-renal-cysts-and-its-discordant-expression-in-renal-neoplasms
#7
Stephen M Bonsib, Christie Boils, Neriman Gokden, David Grignon, Xin Gu, John P T Higgins, Xavier Leroy, Jesse K McKenney, Samih H Nasr, Carrie Phillips, Ankur R Sangoi, Jon Wilson, Ping L Zhang
Tuberous sclerosis complex (TSC) results from mutation of TSC1 or TSC2 that encode for hamartin and tuberin. It affects the kidneys often in advance of extra-renal stigmata. We studied 14 TSC cases, and 4 possible TSC cases with multiple angiomyolipomas (AMLs) for hamartin and tuberin protein expression to determine if the staining profile could predict mutation status or likelihood of TSC with renal-limited disease. The 18 cases included 15 nephrectomies and 1 section of 6 TSC-associated renal cell carcinomas (RCC)...
November 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27631338/morphological-immunohistochemical-and-chromosomal-analysis-of-multicystic-chromophobe-renal-cell-carcinoma-an-architecturally-unusual-challenging-variant
#8
Maria Pané Foix, Ana Dunatov, Petr Martinek, Enric Condom Mundó, Saul Suster, Maris Sperga, Jose I Lopez, Monika Ulamec, Stela Bulimbasic, Delia Perez Montiel, Reza Alaghehbandan, Kvetoslava Peckova, Krystina Pivovarcikova, Daum Ondrej, Pavla Rotterova, Faruk Skenderi, Kristyna Prochazkova, Martin Dusek, Milan Hora, Michal Michal, Ondrej Hes
Chromophobe renal cell carcinoma (ChRCC) is typically composed of large leaf-like cells and smaller eosinophilic cells arranged in a solid-alveolar pattern. Eosinophilic, adenomatoid/pigmented, or neuroendocrine variants have also been described. We collected 10 cases of ChRCC with a distinct multicystic pattern out of 733 ChRCCs from our registry, and subsequently analyzed these by morphology, immunohistochemistry, and array comparative genomic hybridization. Of the 10 patients, 6 were males with an age range of 50-89 years (mean 68, median 69)...
December 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27565001/tfeb-amplified-renal-cell-carcinomas-an-aggressive-molecular-subset-demonstrating-variable-melanocytic-marker-expression-and-morphologic-heterogeneity
#9
Pedram Argani, Victor E Reuter, Lei Zhang, Yun-Shao Sung, Yi Ning, Jonathan I Epstein, George J Netto, Cristina R Antonescu
Renal cell carcinomas (RCCs) with the t(6;11)(p21;q12) chromosome translocation are low-grade RCC which often occur in young patients. They typically feature an unusual biphasic morphology characterized by nests of larger epithelioid cells surrounding intraluminal collections of smaller cells clustered around basement membrane material. The t(6;11)(p21;q12) translocation fuses the Alpha (MALAT1) gene with the TFEB transcription factor gene, resulting in upregulated expression of intact native TFEB that drives the aberrant expression of melanocytic markers which is a hallmark of this distinctive neoplasm...
November 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27493139/a-renal-adenocarcinoma-in-a-corn-snake-pantherophis-guttatus-resembling-human-collecting-duct-carcinoma
#10
Chi-Fei Kao, Jiun-Liang Chen, Wen-Tien Tsao, An-Hsing Lee, Chen-Hsuan Liu, Fun-In Wang
A 5-year-old male captive corn snake (Pantherophis guttatus) with caudal coelomic swelling was admitted for surgical treatment. Laparotomy revealed a 5 × 4 × 2.5 cm, firm, expansile, irregularly shaped mass arising from the middle portion of the right kidney with a mild lobulated pattern and mottled white-to-tan. Microscopically, the mass was composed of numerous bizarre angulated tubules of polygonal neoplastic cells separated by a scirrhous stroma with remarkable heterophilic infiltrates. The neoplastic cells were nonciliated and mucin secreting, with abundant brightly eosinophilic cytoplasm...
September 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27296006/-ectopic-adrenal-cortical-adenoma-in-the-spinal-canal-a-case-report-and-a-review-of-the-literature
#11
REVIEW
A S Konstantinov, K V Shelekhova
Ectopic adrenal cortical neoplasms are extremely rare. The authors describe their own case of intradural, extramedullary conus medullaris adenoma that occurred in a 55-year-old woman, which was clinically accompanied by lumbar pains, left leg numbness, and left foot weakness during 10 years. The mass was histologically composed of rounded and polygonal cell fields with rounded, regular nuclei and abundant eosinophilic and clear cytoplasm. There were no necroses or mitoses. The cells were immunohistochemically positive for cytokeratin AE1/3, vimentin, inhibin-α, melan-A, and synaptophysin...
May 2016: Arkhiv Patologii
https://www.readbyqxmd.com/read/26998154/xp11-2-translocation-renal-cell-carcinoma-with-multiple-bone-metastases-a-case-report
#12
Jiaju Liu, Zhengming Su, Yifan Li, Duqun Chen, Liangchao Ni, Xiangming Mao, Shangqi Yang, Yongqing Lai
Xp11.2 translocation/transcription factor enhancer 3 (TFE3) fusion gene associated with renal cell carcinoma (Xp11.2 translocation RCC) is rare and occurs predominantly in children and adolescents. The current study reports the case of a 14-year-old male with Xp11.2 translocation RCC, who presented with chest pain that had persisted for 1 month. A solid neoplasm was located in the left kidney of the patient. Contrast-enhanced computed tomography revealed the presence of a solid mass in the kidney, with uneven enhancement...
March 2016: Oncology Letters
https://www.readbyqxmd.com/read/26888385/-diagnostic-utility-of-s100a1-glut-1-and-caveolin-1-in-renal-tumors-with-oncocytic-features-a-comparative-study
#13
COMPARATIVE STUDY
Wei Zhang, Kejia Wang, Wenjuan Yu, Yan Liu, Jing Chu, Yanxia Jiang, Yujun Li
OBJECTIVE: To study the immunohistochemical expression of S100A1, GLUT-1 and Cavolin-1 and its diagnostic significance in renal tumors with oncocytic features. METHODS: Tissue microarray and immunohistochemical staining for S100A1, GLUT-1 and Cavolin-1 were carried out in 59 cases of renal tumors with oncocytic features, including 19 cases of renal oncocytoma, 15 cases of clear cell renal cell carcinoma (CCRCC) with eosinophilic cells, 11 cases of eosinophilic variant of chromophobe renal cell carcinoma, 7 cases of oncocytic papillary renal cell carcinoma and 7 cases of epithelioid angiomyolipoma...
November 2015: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/26655904/the-genomic-landscape-of-renal-oncocytoma-identifies-a-metabolic-barrier-to-tumorigenesis
#14
Shilpy Joshi, Denis Tolkunov, Hana Aviv, Abraham A Hakimi, Ming Yao, James J Hsieh, Shridar Ganesan, Chang S Chan, Eileen White
Oncocytomas are predominantly benign neoplasms possessing pathogenic mitochondrial mutations and accumulation of respiration-defective mitochondria, characteristics of unknown significance. Using exome and transcriptome sequencing, we identified two main subtypes of renal oncocytoma. Type 1 is diploid with CCND1 rearrangements, whereas type 2 is aneuploid with recurrent loss of chromosome 1, X or Y, and/or 14 and 21, which may proceed to more aggressive eosinophilic chromophobe renal cell carcinoma (ChRCC)...
December 1, 2015: Cell Reports
https://www.readbyqxmd.com/read/26614031/diagnostic-biomarkers-in-eosinophilic-renal-neoplasms
#15
REVIEW
Li Yan Khor, Puay Hoon Tan
Incidental small renal masses identified on imaging are increasingly investigated via needle core or fine needle aspiration biopsies with limited material provided for rendering a diagnosis. Lesions with a prominent eosinophilic or oncocytic cell presence showing morphologic overlap between well-known eosinophilic neoplasms are challenging to diagnose. We review the range of known benign and malignant eosinophilic renal neoplasms and their immunoprofiles to elucidate a useful panel of stains that may assist the pathologist in making an accurate diagnosis...
February 2016: Urologic Clinics of North America
https://www.readbyqxmd.com/read/26605284/hepatoid-carcinoma-of-the-pancreas-combined-with-serous-cystadenoma-a-case-report-and-review-of-the-literature
#16
Fadl H Veerankutty, Varghese Yeldho, Shabeer Ali Tu, B Venugopal, Krishnan Sarojam Manoj, C Vidhya
Pancreatic hepatoid carcinoma (HC) is an extremely uncommon neoplasm of pancreas that resembles hepatocellular carcinoma (HCC). We report a case of incidentally detected pancreatic HC combined with a serous microcystic cystadenoma, in a 47-year-old man, while he was being evaluated for renal calculi. Contrast enhanced computed tomography (CECT) of abdomen revealed a lesion with mild heterogeneous enhancement in the tail of pancreas and another proximal lesion having moderate enhancement, and a calculus in the neck of gallbladder...
October 2015: Hepatobiliary Surgery and Nutrition
https://www.readbyqxmd.com/read/26464747/alveolar-soft-part-sarcoma-presenting-as-a-breast-metastasis-in-a-patient-with-a-history-of-thyroid-cancer-a-case-report
#17
Andrey Bychkov, Pichet Sampatanukul
Metastases to the breast are uncommon, accounting for 0.5% of breast tumors, and most of them are originated from lymphoma, melanoma and carcinomas of various organs. Alveolar soft part sarcoma (ASPS) is a very rare neoplasm that is usually found in the lower extremities. Lungs are the common site of dissemination and may represent initial manifestation of disease. We report a clinically unsuspected case of ASPS presenting as a breast metastasis in a 25-year-old woman. The patient's medical history was notable for a thyroid cancer treated by surgery and radioiodine ablation 2 years ago...
2015: International Journal of Clinical and Experimental Pathology
https://www.readbyqxmd.com/read/26274027/psf-sfpq-is-a-very-common-gene-fusion-partner-in-tfe3-rearrangement-associated-perivascular-epithelioid-cell-tumors-pecomas-and-melanotic-xp11-translocation-renal-cancers-clinicopathologic-immunohistochemical-and-molecular-characteristics-suggesting-classification
#18
Qiu Rao, Qin Shen, Qiu-yuan Xia, Zi-yu Wang, Biao Liu, Shan-shan Shi, Qun-li Shi, Hong-lin Yin, Bo Wu, Sheng-bing Ye, Li Li, Jie-Yu Chen, Min-hong Pan, Qing Li, Rui Li, Xuan Wang, Ru-song Zhang, Bo Yu, Heng-hui Ma, Zhen-feng Lu, Xiao-jun Zhou
An increasing number of TFE3 rearrangement-associated tumors, such as TFE3 rearrangement-associated perivascular epithelioid cell tumors (PEComas), melanotic Xp11 translocation renal cancers, and melanotic Xp11 neoplasms, have recently been reported. We examined 12 such cases, including 5 TFE3 rearrangement-associated PEComas located in the pancreas, cervix, or pelvis and 7 melanotic Xp11 translocation renal cancers, using clinicopathologic, immunohistochemical, and molecular analyses. All the tumors shared a similar morphology, including a purely nested or sheet-like architecture separated by a delicate vascular network, purely epithelioid cells displaying a clear or granular eosinophilic cytoplasm, a lack of papillary structures and spindle cell or fat components, uniform round or oval nuclei containing small visible nucleoli, and, in most cases (11/12), melanin pigmentation...
September 2015: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/25890370/malignant-renal-epithelioid-angiomyolipoma-associated-with-abdominopelvic-hydatid-cysts-a-case-report
#19
Youssef Mahdi, Kaoutar Znati, Ali Iken, Zakiya Bernoussi, Fouad Zouaidia, Ahmed Jahid, Yassine Nouini, Najat Mahassini
INTRODUCTION: The World Health Organization defines epithelioid angiomyolipoma as a potentially malignant mesenchymal neoplasm characterized by proliferation of predominantly epithelioid cells and as closely related to the triphasic (classic) angiomyolipoma. It can be benign, potentially aggressive or malignant. The pathologist's role is crucial in making a positive diagnosis, providing appropriate patient management and assessing prognosis. In this report, we present a case of a patient with an epithelioid angiomyolipoma and hydatid cyst association...
2015: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/25605645/leiomyoma-cutis-a-focused-review-on-presentation-management-and-association-with-malignancy
#20
REVIEW
Kunal Malik, Parth Patel, Jin Chen, Amor Khachemoune
Cutaneous leiomyomas (CLs) are rare, sporadic, or inherited tumors of smooth muscle origin associated with various disorders. Hereditary leiomyomatosis and renal cell cancer (HLRCC) is the primary tumor predisposition syndrome associated with inherited CLs, affecting 180 families worldwide, with significant mortality. CLs are subdivided into piloleiomyomas, genital leiomyomas, and angioleiomyomas based on their smooth muscle of origin, as well as their clinicopathologic features. Piloleiomyomas, derived from arrector pili muscle, are solitary or multiple firm papulonodules located typically on the extremities and trunk; genital leiomyomas, derived from dartoic, vulvar, or mammary smooth muscle, are solitary papulonodules or pedunculated papules located on the scrotum, vulva, or nipple; and angioleiomyomas, which include solid, cavernous, or venous subtypes, are derived from the tunica media of small arteries and veins and typically present on the extremities...
February 2015: American Journal of Clinical Dermatology
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