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https://www.readbyqxmd.com/read/28533583/high-grade-urothelial-carcinoma-of-bladder-transforming-to-micropapillary-variant-on-follow-up
#1
Nitu Kumari, Anupama Jha, Pawan Vasudeva, Usha Agrawal
Micropapillary variant of urothelial carcinoma (UC) of the bladder is an aggressive tumour, comprising 0.6-6% of all UC. It generally presents with high-grade and stage, and has been reported as having a worse prognosis when compared to traditional UC. We report the case of a 58-year-old man who presented with macroscopic haematuria. The patient was diagnosed with high-grade urothelial carcinoma and returned with recurrence after 16 months. Histopathology after transurethral biopsy revealed a non-muscle invasive high-grade bladder tumour at first presentation, whereas tumour recurrence was reported after 1...
May 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28526245/lymphogenous-metastasis-to-the-transverse-colon-that-originated-from-signet-ring-cell-gastric-cancer-a-case-report-and-review-of-the-literature
#2
Hirofumi Sonoda, Kazushige Kawai, Hironori Yamaguchi, Koji Murono, Manabu Kaneko, Takeshi Nishikawa, Kensuke Otani, Kazuhito Sasaki, Koji Yasuda, Toshiaki Tanaka, Tomomichi Kiyomatsu, Keisuke Hata, Hiroaki Nozawa, Soichiro Ishihara, Susumu Aikou, Hiroharu Yamashita, Tetsuo Ushiku, Yasuyuki Seto, Masashi Fukayama, Toshiaki Watanabe
Metastases to the colon are rare and a high-frequency primary region is the stomach. In cases of metastases to the colon, the morphological type of the metastatic region is mostly the infiltrating type of poorly differentiated or undifferentiated adenocarcinoma with lymph and blood vessel invasion. A case of cancer metastasis to the transverse colon that originated from advanced gastric cancer, which shows the difficulties in the precise diagnosis of metastases to the colon, is presented. In the present case, the gastric carcinoma was determined to be an advanced infiltrative ulcerative adenocarcinoma and the colon carcinoma was determined to be a superficial depressed adenocarcinoma...
May 16, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28506732/primary-seminal-vesicle-carcinoma-the-usefulness-of-pax8-immunohistochemical-expression-for-the-differential-diagnosis
#3
Ilaria Posenato, Anna Caliò, Diego Segala, Salvatore Sgroi, Andrea Polara, Matteo Brunelli, Guido Martignoni
Primary seminal vesicle carcinoma is a rare entity whose diagnosis can be achieved ruling out the main carcinomas that commonly invade the seminal vesicles. Although a panel of immunohistochemical markers (CA125, CK7, CK20, PSA and PSAP) has been proposed as unique for primary seminal vesicle carcinoma, a reliable positive marker is lacking. In this article, we report a case of primary seminal vesicle carcinoma in a 57-years-old man. The tumor was localized to the left seminal vesicle and histologically characterized by papillae lined by broad eosinophilic cells with pleomorphic nuclei...
May 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28505002/immunohistochemical-classification-of-ampullary-carcinomas-critical-reappraisal-fails-to-confirm-prognostic-relevance-for-recently-proposed-panels-and-highlights-muc5ac-as-a-strong-prognosticator
#4
Yue Xue, Michelle D Reid, Serdar Balci, Brian Quigley, Takashi Muraki, Bahar Memis, Jun Xia, Ezgi Hacihasanoglu, Gabriela Bedolla, Burcin Pehlivanoglu, Grace E Kim, Takuma Tajiri, Nobuyike Ohike, Ritu Aneja, Alyssa M Krasinskas, Volkan Adsay
Recently, immunohistochemistry-based classifications of ampullary carcinomas have been proposed (Ang and colleagues [PMID: 24832159]; Chang and colleagues [PMID: 23439753]). In this study, the prognostic value of Ang/Chang panel markers (CK20, MUC1, MUC2, CDX2) as well as other markers (CK7, MUC5AC, and MUC6) were tested on full-faced sections of 136 ampullary carcinoma resections with substantial (>5 mm) invasion. Immunohistochemistry was correlated with both histologic classification (intestinal [INT], pancreatobiliary [PB], or nontubular based on ≥3/5 observer agreement) and clinical outcome...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28495851/different-macrophages-equally-induce-emt-in-endometria-of-adenomyosis-and-normal
#5
Min An, Dong Li, Ming Yuan, Qiuju Li, Lu Zhang, Guo Yun Wang
Endometrial cells and microenvironment are two important factors in the pathogenesis of adenomyosis. Our previous study demonstrated that macrophages can induce eutopic epithelial cells of adenomyosis suffering from epithelial-mesenchymal transition (EMT). The aim of this study is to detect whether macrophages interacting with epithelial cells equally induce the EMT process in normal and eutopic endometria of healthy and adenomyotic patients; and macrophages parallelly polarize to M2. We investigated expressions of epithelial cadherin (E-cadherin), neural cadherin (N-cadherin), cytokeratin7 (CK7), vimentin, transforming growth factor-β1 (TGFB1), SMAD3 and pSMAD3 using Immunohistochemistry and Western Blot, then estimated genetic levels of CD163, IL10 and MMP12 using real-time quantitative polymerase chain reaction (RT-PCR) in macrophages...
May 11, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28494780/metastatic-non-muscle-invasive-bladder-cancer-with-meningeal-carcinomatosis-case-report-of-an-unexpected-response
#6
Diego Teyssonneau, Amaury Daste, Vincent Dousset, Jean-Luc Hoepffner, Alain Ravaud, Marine Gross-Goupil
BACKGROUND: Non-muscle invasive bladder cancer (NMIBC) is usually treated with local therapy including transurethral resection of the bladder tumor and intravesical therapy depending on the stage of the tumor. NMIBC is a rarely a metastatic diseases with lymph node invasion in less of 10%. In the other hand meningeal carcinomatosis is a rare location for metastases with extremely poor outcomes. We described a case report of a patient presenting a metastatic disease to bones and meninges, several years after the treatment of NMIBC, which had been in complete response (CR) for 4 years after chemotherapy treatment...
May 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28491432/renal-transitional-cell-carcinoma-with-bilateral-ocular-metastasis-in-a-cat
#7
Irit Grader, Teresa L Southard, Marjorie H Neaderland
Case summary A 4-year-old, spayed female, domestic shorthair cat was presented for evaluation due to a 4 day history of inappetence and lethargy. Physical examination revealed mild dehydration and blindness of the left eye. Abnormal imaging findings included a well-margined soft tissue mass with irregular central cavity located in the dorsal aspect of the caudal lung lobe. Cytological examination of the mass revealed chronic inflammation with hemorrhage. Tests for parasitic and fungal diseases were negative...
July 2016: JFMS Open Rep
https://www.readbyqxmd.com/read/28476053/transmission-of-donor-derived-breast-carcinoma-as-a-recurrent-mass-in-a-keratolimbal-allograft
#8
Audra K Miller, Jonathan W Young, David J Wilson, Jennifer Dunlap, Winston Chamberlain
PURPOSE: To report a case of local transmission of invasive lobular carcinoma from a donor to a recipient in a keratolimbal allograft after cessation of systemic immunosuppressive therapy. METHODS: This is a case report including the clinicopathologic findings. Sections of the donor breast tumor and recipient conjunctival lesions were stained with hematoxylin and eosin. Immunohistochemical studies were performed using pancytokeratin, CK7, CK20, CAM 5.2, CD138, TTF1, estrogen receptor, progesterone receptor, GATA-3, GCDFP-15, and mammaglobin...
June 2017: Cornea
https://www.readbyqxmd.com/read/28471475/differential-expression-of-aquaporin-3-and-aquaporin-5-in-pancreatic-ductal-adenocarcinoma
#9
Inês Direito, Jorge Paulino, Emanuel Vigia, Maria Alexandra Brito, Graça Soveral
BACKGROUND AND OBJECTIVES: Aquaporin-5 (AQP5) and -3 (AQP3) are protein channels that showed to be up-regulated in a variety of tumors. Our goal was to investigate the expression pattern of AQP5 and AQP3 in pancreatic ductal adenocarcinomas (PDA) and correlate with cell proliferation, tumor stage and progression, and clinical significance. METHODS: 35 PDA samples in different stages of differentiation and locations were analyzed by immunohistochemistry for expression of AQP5, AQP3 and several markers of cell proliferation and tumorigenesis...
May 4, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28468559/pediatric-mesenchymal-hamartomas-of-the-liver-can-show-both-foregut-and-hindgut-phenotype
#10
Hao Wu, William Ferguson, Eumenia Castro, Milton Finegold, Kalyani Patel
Cystic epithelium in mesenchymal hamartoma (MH) is typically biliary type. Mucinous differentiation of the epithelium and increased hepatocellular component may pose a diagnostic challenge. We studied MH in 7 children (6 M, 1 F; age 4 months to 8 years, median 1 year). Resected tumors varied from 3.0 to 17.0 cm. All tumors showed biliary epithelium in the cystic component with strong and diffuse reactivity for CK7 and CK19. Expression of CK20 and CDX2 was additionally seen in 2 tumors, rare/focal in 1, and diffuse with mucinous differentiation in the other...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28455741/lymphoepithelioma-like-carcinoma-of-the-upper-urinary-tract
#11
Antonio Lopez-Beltran, Gladell Paner, Ana Blanca, Rodolfo Montironi, Toyonori Tsuzuki, Yoji Nagashima, Shi-Sung Chuang, Khin Than Win, Leo Madruga, Maria R Raspollini, Liang Cheng
In this report, we summarized the clinicopathologic features of ten cases of lymphoepithelioma-like carcinoma (LELC) of the upper urinary tract (ureter n = 6; renal pelvis n = 4), a rare variant of urothelial cancer characterized by a malignant epithelial component densely infiltrated by lymphoid cells. The initial diagnosis was made on radical nephrectomy in five cases, nephroureterectomy in three cases, and ureterectomy in two others. Four patients had pathologic stage T1 (n = 2) or T2 (n = 2) tumors, and six patients had stage pT3 disease...
April 28, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28449664/distinct-immunophenotypes-and-prognostic-factors-in-renal-cell-carcinoma-with-sarcomatoid-differentiation-a-systematic-study-of-19-immunohistochemical-markers-in-42-cases
#12
Wenjuan Yu, Yuewei Wang, Yanxia Jiang, Wei Zhang, Yujun Li
BACKGROUND: Renal cell carcinoma (RCC) with sarcomatoid differentiation is a relatively rare tumor containing both carcinoma and sarcomatoid components. However, there has not been a systemic study on immunophenotypes of renal cell carcinoma with sarcomatoid differentiation, especially using some renal specific immunohistochemical markers. In this study, we aimed to comprehensively investigate the distinct immunophenotypes of RCC with sarcomatoid differentiation to analyze the pathogenesis of sarcomatoid differentiation and identify new prognostic factors in RCC with sarcomatoid differentiation...
April 27, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28449606/pseudomyxoma-peritonei-as-a-first-manifestation-of-kras-mutated-urachal-mucinous-cystadenocarcinoma-of-the-bladder-a-case-report
#13
Ksenya V Shelekhova, Alexander S Zhuravlev, Daria D Krylova, Alexey S Konstantinov, Lidia V Shtan, Valeriia A Kheinshtein
Only 28 cases of pseudomyxoma peritonei (PMP) arising from urachal neoplasms have been reported. We report one example of this extremely rare disease with KRAS mutational status in its spectrum of pathology. A 45-year-old woman presented with urachal frankly invasive mucinous cystadenocarcinoma confined to the dome of the bladder, which clinically manifested as PMP and was not detected at the first surgery. The primary tumour was revealed 6 months later because of its recurrence as PMP. Microscopic investigation revealed tubular adenoma and cystadenocarcinoma communicating with the bladder lumen and transitioning from the urachal urothelium to the mucinous epithelium...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28438615/clinicopathological-immunohistochemical-and-mutational-analyses-of-pulmonary-enteric-adenocarcinoma-usefulness-of-satb2-and-%C3%AE-catenin-immunostaining-for-differentiation-from-metastatic-colorectal-carcinoma
#14
Jun Matsushima, Takuya Yazawa, Masaki Suzuki, Yoko Takahashi, Satoshi Ota, Takahiro Nakajima, Ichiro Yoshino, Tomoyuki Yokose, Toru Inoue, Kunimitsu Kawahara, Yukio Nakatani
Pulmonary enteric adenocarcinoma (PEA) is a rare variant of pulmonary adenocarcinoma; it is sometimes difficult to discriminate between PEA and metastatic colorectal carcinoma (MCRC) because of their morphological and immunohistochemical resemblance. Here, we conducted clinicopathological, immunohistochemical, and mutational analyses of PEA with special focus on its differentiation from MCRC. We comparatively analyzed eight surgically resected PEA tumors (7 patients) and 20 cases of MCRC. Patients were aged 43-77years (average age, 64...
April 21, 2017: Human Pathology
https://www.readbyqxmd.com/read/28416106/categorizing-renal-oncocytic-neoplasms-on-core-needle-biopsy-a-morphologic-and-immunophenotypic-study-of-144-cases-with-clinical-follow-up-alderman-ma-daignault-s-wolf-js-jr-palapattu-gs-weizer-az-hafez-ks-kunju-lp-wu-aj-hum-pathol-september-2016-55-1-10
#15
Oleksandr N Kryvenko
There is limited literature on renal oncocytic neoplasms diagnosed on core biopsy. All renal oncocytic neoplasm core biopsies from 2006 to 2013 were, retrospectively, reviewed. Morphologic features and an immunohistochemical panel of CK7, c-KIT, and S100A1 were assessed. Concordance with resection diagnosis, statistical analysis including a random forest classification, and follow-up were recorded. The postimmunohistochemical diagnoses of 144 renal oncocytic core biopsies were favor oncocytoma (67%), favor renal cell carcinoma (RCC) (12%), and cannot exclude RCC (21%)...
April 13, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28415560/gallbladder-papillary-neoplasms-share-pathological-features-with-intraductal-papillary-neoplasm-of-the-bile-duct
#16
Xueshuai Wan, Jie Shi, Anqiang Wang, Yuan Xie, Xiaobo Yang, Chengpei Zhu, Haohai Zhang, Liangcai Wu, Shanshan Wang, Hanchun Huang, Jianzhen Lin, Yongchang Zheng, Zhiyong Liang, Xinting Sang, Haitao Zhao
Intraductal papillary neoplasm of the bile duct (IPNB) has been widely recognized. However, the knowledge of intracystic papillary neoplasm of the gallbladder (IPNG) including papillary adenoma and adenocarcinoma is not well defined. In this study, we compared the clinicopathological and immunohistochemical features between 32 IPNG cases and 32 IPNB cases. IPNG-1 (low-high grade dysplasia) exhibited an earlier onset age, smaller tumor size and lower level of CK20 expression compared to IPNG-2 (invasive carcinoma)...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403025/p16ink4a-cytokeratin-7-and-ki-67-as-potential-markers-for-low-grade-cervical-intraepithelial-neoplasia-progression
#17
Larissa Bastos Eloy da Costa, Renata De Marchi Triglia, Liliana A Lucci De Angelo Andrade
OBJECTIVE: The aim of this study was to evaluate p16, cytokeratin 7 (CK7), and Ki-67 immunoexpressions in low-grade squamous intraepithelial lesion (LSIL), looking for differences among cases that progress to high-grade squamous intraepithelial lesion, maintain LSIL, or regress. MATERIALS AND METHODS: Sixty-six LSIL biopsies were studied. In the follow-up, a second biopsy showed 28.7% regression, 37.9% LSIL, and 33.4% progressed to high-grade squamous intraepithelial lesion...
April 11, 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28402962/regeneration-of-cervical-reserve-cell-like-cells-from-human-induced-pluripotent-stem-cells-ipscs-a-new-approach-to-finding-targets-for-cervical-cancer-stem-cell-treatment
#18
Masakazu Sato, Kei Kawana, Katsuyuki Adachi, Asaha Fujimoto, Mitsuyo Yoshida, Hiroe Nakamura, Haruka Nishida, Tomoko Inoue, Ayumi Taguchi, Juri Ogishima, Satoko Eguchi, Aki Yamashita, Kensuke Tomio, Osamu Wada-Hiraike, Katsutoshi Oda, Takeshi Nagamatsu, Yutaka Osuga, Tomoyuki Fujii
Cervical reserve cells are epithelial progenitor cells that are pathologically evident as the origin of cervical cancer. Thus, investigating the characteristics of cervical reserve cells could yield insight into the features of cervical cancer stem cells (CSCs). In this study, we established a method for the regeneration of cervical reserve cell-like properties from human induced pluripotent stem cells (iPSCs) and named these cells induced reserve cell-like cells (iRCs). Approximately 70% of iRCs were positive for the reserve cell markers p63, CK5 and CK8...
April 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28395325/interaction-of-macrophages-and-endometrial-cells-induces-epithelial-mesenchymal-transition-like-processes-in-adenomyosis%C3%A2
#19
Min An, Dong Li, Ming Yuan, Qiuju Li, Lu Zhang, Guoyun Wang
Adenomyosis is a nonneoplastic condition characterized by the benign invasion of ectopic endometrium into the myometrium. Macrophages play significant roles in epithelial-mesenchymal transition (EMT) and adenomyosis. An EMT associated with adenomyosis has been extensively studied. This study investigated the process by which the interaction of macrophages with endometrial cells induces EMT in Ishikawa cells and epithelial cells of adenomyosis. Specimens were collected after hysterectomy or resection of adenomyosis lesions from women with adenomyosis and curettage from women without adenomyosis or endometriosis...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28357098/pulmonary-sclerosing-hemangioma-with-a-rare-symptom-a-case-report-and-review-of-the-literature
#20
Le Zhou, Chuntang Sun, Yan Huang, Qiao Li, Huairong Tang, Youjuan Wang
Pulmonary sclerosing hemangioma (PSH) is a relatively rare benign tumor. However, as it occurs only rarely, the natural course of the tumor is not well understood. In the present study, a case is presented of a 35-year-old woman who underwent intermittent fevers for more than one year. This case highlighted fever as a rare symptom of PSH. Fever is possibly one of the symptoms of PSH, although it is less likely to occur. Another symptom of the patient was that the tumor grew quickly in two months. The lesion was diagnosed as multiple sclerosing hemangioma of the lung (i...
February 2017: Molecular and Clinical Oncology
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