Histopathological evidence of intrahepatic cholangiocarcinoma occurring in ductal plate malformation: A clinicopathologic study of 5 cases Qian Wang, Yi Xu, Shou-Mei Wang, Ai-Yan Hu, Yun-Cui Pan, Shu-Hui Zhang Annals of Diagnostic Pathology.2021; 55: 151828. CrossRef
Cholangiolocellular Carcinoma Arising in a Normal Liver Chie Kitami, Yasuyuki Kawachi, Toshihiko Igarashi, Shigeto Makino, Atsushi Nishimura, Mikako Kawahara, Keiya Niikuni, Kenichi Harada The Japanese Journal of Gastroenterological Surgery.2016; 49(10): 1006. CrossRef
Primary ovarian angiosarcoma is very rare with only 27 cases reported so far in the medical literature. We report here on a rare case of ovarian microinvasive mucinous carcinoma that was coexistent with angiosarcoma in a 54-year-old woman. The tumor was a 26x19x10 cm-sized multilocular cystic mass with a 4x3 cm-sized solid hematoma-like nodule in the center.
Microscopically, it was composed mostly of mucinous tumor of various grades from borderline to microinvasive carcinoma.
The hematoma-like area turned out to be an angiosarcoma, composed of pleomorphic cells that formed slit-like spaces, spindle cells that formed short fascicles and anastomosing vascular channels with atypical endothelial cells. All these cells were positive for CD31, CD34 and factor VIII-related antigen. The patient developed peritoneal and pleural metastases, which were angiosarcoma and mucinous carcinoma, respectively. We believe this case is only the fourth example of an ovarian collision tumor of angiosarcoma and surface epithelial tumor.
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Ovarian angiosarcoma: A systematic review of literature and survival analysis Shafi Rehman, Arya Harikrishna, Amisha Silwal, B.R. Sumie, Safdar Mohamed, Nisha Kolhe, Meghana Maddi, Linh Huynh, Jesus Gutierrez, Yoshita Rao Annepu, Ameer Mustafa Farrukh Annals of Diagnostic Pathology.2024; 73: 152331. CrossRef
Tumor to Tumor Metastasis: A Case Report of Metastatic Angiosarcoma to an Ovarian Brenner Tumor and Review of the Literature Bilge Dundar, Audai Alrwashdeh, Laila Dahmoush International Journal of Gynecological Pathology.2023; 42(2): 176. CrossRef
Collision Tumors in Ovary: Case Series and Literature Review Borges A, Loddo A, Martins A, Peiretti M, Fanni D, Djokovic D Journal of Surgical Oncology.2019; : 1. CrossRef
Angiosarcoma Arising in Ovarian Mucinous Tumor: A Challenge in Intraoperative Frozen Section Diagnosis Surapan Khunamornpong, Jongkolnee Settakorn, Kornkanok Sukpan, Tip Pongsuvareeyakul, Sumalee Siriaunkgul Case Reports in Pathology.2016; 2016: 1. CrossRef
Impact of body burden of pesticide residues on the reproductive tract of buffalo KARANPREET KAUR, SARVPREET SINGH GHUMAN, OPINDER SINGH, JASBIR SINGH BEDI, JATINDER PAUL SINGH GILL The Indian Journal of Animal Sciences.2016;[Epub] CrossRef
BACKGROUND APC and E-cadherin are the key molecules in the Wnt/beta-catenin pathway. We attempted to define the epigenetic alteration of APC and CDH1 (the E-cadherin gene) and the expression of Wnt-related molecules in human mammary carcinomas. METHODS Sixty-four mammary carcinomas, including 52 invasive ductal carcinomas (IDCs) and 12 invasive lobular carcinomas (ILCs), were evaluated using methylation-specific PCR and immunohistochemistry. We performed immunohistochemistry for E-cadherin, beta-catenin, APC, Wnt1, cyclin D1, ER, PR and C-erb B2. RESULTS Hypermethylation of APC and CDH1 was observed in 38 (59%) and 28 (44%) cases, respectively. CDH1 hypermethylation in ILCs was increased compared to that in IDCs (p=0.002) and it was associated with the loss of E-cadherin (p=0.02) and beta-catenin (p=0.042). APC methylation was positively correlated with the ER expression (p=0.021). Abnormal cytoplasmic localization of beta-catenin was found in 10 cases and any expression was not detected in six cases. In ILCs, the E-cadherin or beta-catenin expression was markedly decreased compared to that in IDCs (p<0.001 in both). CONCLUSIONS Methylation of APC or CDH1 was relatively frequent in mammary carcinomas. The loss of E-cadherin in mammary carcinoma was associated with CDH1 methylation, and abnormal beta-catenin expression was related to the loss of E-cadherin in ILC.
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Wnt/β-catenin signaling pathway activation reverses gemcitabine resistance by attenuating Beclin1-mediated autophagy in the MG63 human osteosarcoma cell line Hao Tao, Feng Chen, Haifei Liu, Yanling Hu, Yingzhen Wang, Haiyan Li Molecular Medicine Reports.2017; 16(2): 1701. CrossRef
Kwang Sun Suh, Insun Kim, Moon Hyang Park, Geung Hwan Ahn, Jin Hee Sohn, In Ae Park, Hye Kyoung Yoon, Kyu Rae Kim, Hee Jung An, Dong Won Kim, Mi Jin Kim, Hee Jae Joo, Eun Kyung Kim, Young Hee Choi, Chong Woo Yoo, Kyung Un Choi, Sang Yeop Yi, Hye Sun Kim, Sung Ran Hong, Hee Jeong Lee, Sun Lee
BACKGROUND The purpose of this study was to examine the reproducibility of both the diagnosis of endometrial hyperplasia (EH) or adenocarcinoma, and the histologic grading (HG) of endometrioid adenocarcinoma (EC). METHODS Ninety-three cases of EH or adenocarcinomas were reviewed independently by 21 pathologists of the Gynecologic Pathology Study Group. A consensus diagnosis was defined as agreement among more than two thirds of the 21 pathologists. RESULTS There was no agreement on the diagnosis in 13 cases (14.0%). According to the consensus review, six of the 11 EH cases (54.5%) were diagnosed as EH, 48 of the 57 EC cases (84.2%) were EC, and 5 of the 6 serous carcinomas (SC) (83.3%) were SC. There was no consensus for the 6 atypical EH (AEH) cases. On the HG of EC, there was no agreement in 2 cases (3.5%). According to the consensus review, 30 of the 33 G1 cases (90.9%) were G1, 11 of the 18 G2 cases (61.1%) were G2, and 4 of the 4 G3 cases (100.0%) were G3. CONCLUSIONS The consensus study showed high agreement for both EC and SC, but there was no consensus for AEH. The reproducibility for the HG of G2 was poor. We suggest that simplification of the classification of EH and a two-tiered grading system for EC will be necessary.