Wilbur, David C. M.D.; Young, Robert H. M.D.
doi : 10.1097/PGP.0000000000000895
Volume 42(2) pgs. 109-219 March 2023
Chapel, David B. M.D.; Sharma, Aarti M.D.; Maccio, Livia M.D.; Bragantini, Emma M.D.; Zannoni, Gian Franco M.D.; Yuan, Liping M.D.; Quade, Bradley J. M.D., Ph.D.; Parra-Herran, Carlos M.D.; Nucci, Marisa R. M.D.
doi : 10.1097/PGP.0000000000000918
AB Approximately 1% to 1.5% of uterine leiomyomas are fumarate hydratase (FH)-deficient (FHd). A subset of these are associated with germline FH mutations. However, the prevalence and clinicopathologic characteristics of FHd uterine leiomyosarcoma (uLMS) remain unknown.
Banet, Natalie M.D.; Masnick, Max Ph.D.; Quddus, M. Ruhul M.D., M.Phil (Path.)
doi : 10.1097/PGP.0000000000000866
AB Saccharomyces cerevisiae-like 1 (SEC14L1) is a member of the SEC14 family and is involved in liposoluble vitamin transfer, and in a large cohort of breast cancer cases, was one of the genes most significantly associated with lymphovascular invasion (LVI), and had a significant relationship with human epidermal growth factor receptor 2 status, survival, and histologic grade.
Panwar, Vandana M.D.; Liu, Yu M.D., Ph.D.; Gwin, Katja M.D.; Chen, Hao M.D., Ph.D.
doi : 10.1097/PGP.0000000000000850
AB Uterine collagen type 1 alpha 1 (COL1A1) and platelet-derived growth factor beta chain (PDGFB) fusion associated fibrosarcoma is a recently described entity characterized by a specific translocation t(17;22) (q22;q13) leading to the formation of COL1A1-PDGFB fusion transcripts that are typically associated with dermatofibrosarcoma protuberans.
Hogeboom, Adriana M.D.; Barcena, Carmen M.D.; Parrilla-Rubio, Lucia M.D.; Revilla, Enrique M.D.; Ruano, Yolanda Ph.D.; Gallego-Gutierrez, Irene M.D.; Martinez-Lopez, Mario M.D.
doi : 10.1097/PGP.0000000000000875
AB COL1A1-PDGFB gene fusion uterine sarcoma is a recently described entity which shows some overlapping features with dermatofibrosarcoma protuberans. To date, only 4 cases have been reported in the literature.
Boyraz, Baris M.D., Ph.D.; Gogakos, Tasos M.D., Ph.D.; Raskin, Kevin A. M.D.; Nielsen, Gunnlaugur Petur M.D.
doi : 10.1097/PGP.0000000000000874
AB Heterologous differentiation has only been previously reported twice in metastatic uterine leiomyosarcomas. We report herein the first case of metastatic uterine leiomyosarcoma with rhabdomyosarcomatous differentiation.
Wong, Jahg M.D.; Roy, Simon F. M.D.; Provencher, Diane M.D., F.R.C.S.C.; Maietta, Antonio M.D., F.R.C.P.C.; Rahimi, Kurosh M.Sc., M.D., F.R.C.P.C.
doi : 10.1097/PGP.0000000000000881
AB Uterine leiomyoma with massive lymphoid infiltration is characterized by a dense lymphoid infiltrate and germinal centers sparing the adjacent myometrium. Only few reports describe this entity and its etiology is unknown.
Devins, Kyle M. M.D.; Zukerberg, Lawrence M.D.; Watkins, Jaclyn C. M.D.; Hung, Yin Pun M.D., Ph.D.; Oliva, Esther M.D.
doi : 10.1097/PGP.0000000000000877
AB Peritoneal mesothelioma (PM) and serous neoplasms can be difficult to differentiate, particularly in small biopsies. BRCA1-associated protein 1 (BAP1) is expressed in benign tissues, but over 50% of PMs demonstrate complete loss of nuclear expression.
McHenry, Austin M.D.; Buza, Natalia M.D.
doi : 10.1097/PGP.0000000000000887
AB Anastomosing hemangioma is a recently described vascular neoplasm, initially identified in the male genitourinary tract. Since its first description, it has been reported at multiple anatomic sites, including rare cases in the female genital tract, most in the ovary.
Dundar, Bilge M.D.; Alrwashdeh, Audai M.B.B.S.; Dahmoush, Laila M.B.Ch.B.
doi : 10.1097/PGP.0000000000000854
AB While angiosarcoma metastatic to the ovary is rare, metastatic angiosarcoma to an ovarian tumor has never been reported in the literature, so far. We report a case of a 61-yr-old postmenopausal woman with history of breast cancer, presenting with metastatic angiosarcoma to an ovarian Brenner tumor.
Nilforoushan, Neshat M.D.; Liu, Lian M.D.; Finkelman, Brian S. M.D., Ph.D.; Andersen, John D.O.; Liu, Ying M.D., Ph.D.; James, Jeffrey D.O.; Hung, Chien-Fu Ph.D.; Wu, T.-C. M.D., Ph.D.; Vang, Russell M.D.; Xing, Deyin M.D., Ph.D.
doi : 10.1097/PGP.0000000000000868
AB Ovarian combined serous borderline tumor/low-grade serous carcinomas (SBT/LGSC) and mesonephric-like adenocarcinomas (MLA) have been previously reported and the presence of identical oncogenic somatic mutations in both components supports the concept that at least some of MLAs arise from a Mullerian origin.
Bonometti, Arturo M.D.; Carbone, Riccardo M.D.; Cassani, Chiara M.D.; Dioli, Claudia B.Sc.; Lucato, Elena B.Sc.; Spinillo, Arsenio M.D.; Paulli, Marco M.D., Ph.D.; Cesari, Stefania M.D., Ph.D.
doi : 10.1097/PGP.0000000000000878
AB Intralymphatic histiocytosis is a condition characterized by the accumulation of mononuclear phagocytes within lymphatic vessels and lymph nodes that may be isolated or secondary to autoimmune or neoplastic diseases.
Devins, Kyle M. M.D.; Wilkinson, Nafisa M.D.; Barton-Smith, Peter M.D.; Jaio, Long M.D.; Young, Robert H. M.D.
doi : 10.1097/PGP.0000000000000879
AB Nests of cells resembling urothelium, eponymously named "Walthard nests," are well-known incidental findings over the fallopian tube and occasionally undergo cystification resulting in clinical detection and surgical removal. Only rarely is this process noted outside the pelvic peritoneum.
Hofstetter, Gerda M.D.; Mildner, Michael M.D.; Tschandl, Philipp M.D.; Pammer, Johannes M.D.
doi : 10.1097/PGP.0000000000000907
AB Accurate diagnosis of differentiated vulvar intraepithelial neoplasia (dVIN) can be challenging as histomorphologic features may be subtle and overlap with nondysplastic lesions.
Wong, Jahg M.D.; Roy, Simon F. M.D.; Provencher, Diane M.D., F.R.C.S.C.; Rahimi, Kurosh M.Sc., M.D., F.R.C.P.C.
doi : 10.1097/PGP.0000000000000880
AB Vulvar squamous cell carcinoma of the vulva (VSCC) with sarcomatoid features is a rare variant characterized by spindle-cell morphology and occasional heterologous elements.
Liu, Xiang-Lan M.D.; Ding, Li M.D.; Lu, Xiao M.D.; Hu, Yan-Jiao M.D.; Zhou, Xiao-Li M.S.; Lin, Dong-Liang M.D.
doi : 10.1097/PGP.0000000000000891
AB The fetal gut-like phenotype can be found in yolk sac tumors and adenocarcinomas with enteroblastic differentiation (AEBDs). We report a cervical yolk sac tumor in a 44-yr-old woman.
Stolnicu, Simona M.D., Ph.D.; Zannoni, Gian Franco M.D.; Soslow, Robert A. M.D.
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