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Journal of Pathology and Translational Medicine

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https://www.readbyqxmd.com/read/28683521/expression-of-cd34-and-%C3%AE-catenin-in-malignant-rhabdoid-tumor-of-the-liver-mimicking-proximal-type-epithelioid-sarcoma
#1
Woo Cheal Cho, Fabiola Balarezo
No abstract text is available yet for this article.
July 7, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28625044/her2-status-and-its-heterogeneity-in-gastric-carcinoma-of-vietnamese-patients
#2
Dang Anh Thu Phan, Vu Thien Nguyen, Thi Ngoc Ha Hua, Quoc Dat Ngo, Thi Phuong Thao Doan, Sao Trung Nguyen, Anh Tu Thai, Van Thanh Nguyen
Background: Human epidermal growth factor receptor 2 (HER2) is related to the pathogenesis and poor outcome of numerous types of carcinomas, including gastric carcinoma. Gastric cancer patients with HER2 positivity have become potential candidates for targeted therapy with trastuzumab. Materials and Methods: We investigated 208 gastric cancer specimens using immunohistochemistry (IHC), fluorescence in situ hybridization and dual in situ hybridization (ISH). We also investigated the concordance between IHC and ISH...
June 19, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28609825/the-use-of-the-bethesda-system-for-reporting-thyroid-cytopathology-in-korea-a-nationwide-multicenter-survey-by-the-korean-society-of-endocrine-pathologists
#3
Mi Mi Kim, Hyo Jin Park, Hye Sook Min, Hyeong Ju Kwon, Chan Kwon Jung, Seoung Wan Chae, Hyun Ju Yoo, Yoo Duk Choi, Mi Ja Lee, Jeong Ja Kwak, Dong Eun Song, Dong Hoon Kim, Hye Kyung Lee, Ji Yeon Kim, Sook Hee Hong, Jang Sihn Sohn, Hyun Seung Lee, So Yeon Park, Soon Won Hong, Mi Kyung Shin
Background: The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has standardized the reporting of thyroid cytology specimens. The objective of the current study was to evaluate the nationwide usage of TBSRTC and assess the malignancy rates in each category of TBSRTC in Korea. Materials and Methods: Questionnaire surveys were used for data collection on the fine needle aspiration (FNA) of thyroid nodules at 74 institutes in 2012. The incidences and follow-up malignancy rates of each category diagnosed from January to December, 2011, in each institute were also collected and analyzed...
June 14, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28607325/implication-of-phf2-expression-in-clear-cell-renal-cell-carcinoma
#4
Cheol Lee, Bohyun Kim, Boram Song, Kyung Chul Moon
Background: Clear cell renal cell carcinoma (CCRCC) is presumed to be associated with adipogenic differentiation. Histone modification is known to be important for adipogenesis, and the function of histone demethylase plant homeodomain finger 2 (PHF2) has been noted. In addition, PHF2 may act as a tumor suppressor via epigenetic regulation of p53 and is reported to be reduced in colon cancer and stomach cancer tissues. In this study, we examined PHF2 expression in CCRCC specimens by immunohistochemistry...
June 13, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28607326/morphological-features-and-immunohistochemical-expression-of-p57kip2-in-early-molar-pregnancies-and-their-relations-to-the-progression-to-persistent-trophoblastic-disease
#5
Marwa Khashaba, Mohammad Arafa, Eman Elsalkh, Reda Hemida, Wagiha Kandil
Background: Although the morphological features characteristic of products of conception specimens including molar pregnancies are well described, substantial histopathological similarities are observed between the different entities, especially in cases of early pregnancies. Furthermore, there are no current solid criteria that could predict cases with progression to persistent gestational trophoblastic disease. In this study, we aimed to determine the most specific histopathological and immunohistochemical features required for accurate diagnosis that can reliably predict the clinical behavior...
June 12, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28602051/yes-associated-protein-expression-is-correlated-to-the-differentiation-of-prostate-adenocarcinoma
#6
Myung-Giun Noh, Sung Sun Kim, Eu Chang Hwang, Dong Deuk Kwon, Chan Choi
Background: Yes-associated protein (YAP) in the Hippo signaling pathway is a growth control pathway that regulates cell proliferation and stem cell functions. Abnormal regulation of YAP was reported in human cancers including liver, lung, breast, skin, colon, and ovarian cancer. However, the function of YAP is not known in prostate adenocarcinoma. The purpose of this study was to investigate the role of YAP in tumorigenesis, differentiation of the carcinoma, and prognosis of prostate adenocarcinoma...
June 9, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28597867/prognostic-significance-of-a-micropapillary-pattern-in-pure-mucinous-carcinoma-of-the-breast-comparative-analysis-with-micropapillary-carcinoma
#7
Hyun-Jung Kim, Kyeongmee Park, Jung Yeon Kim, Guhyun Kang, Geumhee Gwak, Inseok Park
Background: Mucinous carcinoma of the breast is an indolent tumors with a favorable prognosis; however, micropapillary features tend to lead to aggressive behavior. Thus, mucinous carcinoma and micropapillary carcinoma exhibit contrasting biologic behaviors. Here, we review invasive mucinous carcinoma with a focus on micropapillary features and correlations with clinicopathological factors. Materials and Methods: A total of 64 patients with invasive breast cancer with mucinous or micropapillary features were enrolled in the study...
June 9, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28597868/loss-of-progesterone-receptor-expression-is-an-early-tumorigenesis-event-associated-with-tumor-progression-and-shorter-survival-in-pancreatic-neuroendocrine-tumor-patients
#8
Sung Joo Kim, Soyeon An, Jae Hoon Lee, Joo Young Kim, Ki-Byung Song, Dae Wook Hwang, Song Cheol Kim, Eunsil Yu, Seung-Mo Hong
Background: Pancreatic neuroendocrine tumors (PanNETs) are the second most common pancreatic neoplasms and there is no well-elucidated biomarker to stratify their detection and prognosis. Previous studies have reported that progesterone receptor (PR) expression status was associated with poorer survival in PanNET patients. Materials and Methods: To validate previous studies, PR protein expression was assessed in 21 neuroendocrine microadenomas and 277 PanNETs and compared with clinicopathologic factors including patient survival...
June 8, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28593937/basaloid-squamous-cell-carcinoma-of-the-head-and-neck-subclassification-into-basal-ductal-and-mixed-subtypes-based-on-comparison-of-clinico-pathologic-features-and-expression-of-p53-cyclin-d1-epidermal-growth-factor-receptor-p16-and-human-papillomavirus
#9
Kyung-Ja Cho, Se-Un Jeong, Sung Bae Kim, Sang-Wook Lee, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim
Background: Basaloid squamous cell carcinoma (BSCC) is a rare variant of squamous cell carcinoma with distinct pathologic characteristics. The histogenesis of BSCC is not fully understood, and the cancer has been suggested to originate from a totipotent primitive cell in the basal cell layer of the surface epithelium or in the proximal duct of secretory glands. Materials and Methods: Twenty-six cases of head and neck BSCC from Asan Medical Center, Seoul, Korea, reported during a 14-year-period were subclassified into basal, ductal, and mixed subtypes according to the expression of basal (cytokeratin [CK] 5/6, p63) or ductal markers (CK7, CK8/18)...
June 8, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28592787/rare-gastric-lesions-associated-with-helicobacter-pylori-infection-a-histopathological-review
#10
Mee Joo
Helicobacter pylori infection is associated with chronic gastritis, peptic ulcer disease, gastric adenocarcinoma, and mucosa-associated lymphoid tissue lymphoma. However, some rare gastric lesions exhibiting distinctive histological features may also be associated with H. pylori infection, including lymphocytic gastritis, granulomatous gastritis, Russell body gastritis, or crystal-storing histiocytosis. Although diverse factors can contribute to their development, there is convincing evidence that H. pylori infection may play a pathogenic role...
June 5, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28592786/epstein-barr-virus-associated-lymphoproliferative-disorders-review-and-update-on-2016-who-classification
#11
Hyun-Jung Kim, Young Hyeh Ko, Ji Eun Kim, Seung-Sook Lee, Hyekyung Lee, Gyeongsin Park, Jin Ho Paik, Hee Jeong Cha, Yoo-Duk Choi, Jae Ho Han, Jooryung Huh
Epstein-Barr virus (human herpesvirus-4) is very common virus that can be detected in more than 95% of the human population. Most people are asymptomatic and live their entire lives in a chronically infected state (IgG positive). However, in some populations, the Epstein-Barr virus (EBV) has been involved in the occurrence of a wide range of B-cell lymphoproliferative disorders (LPDs), including Burkitt lymphoma, classic Hodgkin's lymphoma, and immune-deficiency associated LPDs (post-transplant and human immunodeficiency virus-associated LPDs)...
June 5, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535586/an-experimental-infarct-targeting-the-internal-capsule-histopathological-and-ultrastructural-changes
#12
Chang-Woo Han, Kyung-Hwa Lee, Myung Giun Noh, Jin-Myung Kim, Hyung-Seok Kim, Hyung-Sun Kim, Ra Gyung Kim, Jongwook Cho, Hyoung-Ihl Kim, Min-Cheol Lee
BACKGROUND: Stroke involving the cerebral white matter (WM) has increased in prevalence, but most experimental studies have focused on ischemic injury of the gray matter. This study was performed to investigate the WM in a unique rat model of photothrombotic infarct targeting the posterior limb of internal capsule (PLIC), focusing on the identification of the most vulnerable structure in WM by ischemic injury, subsequent glial reaction to the injury, and the fundamental histopathologic feature causing different neurologic outcomes...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535585/good-laboratory-standards-for-clinical-next-generation-sequencing-cancer-panel-tests
#13
REVIEW
Jihun Kim, Woong-Yang Park, Nayoung K D Kim, Se Jin Jang, Sung-Min Chun, Chang-Ohk Sung, Jene Choi, Young-Hyeh Ko, Yoon-La Choi, Hyo Sup Shim, Jae-Kyung Won
Next-generation sequencing (NGS) has recently emerged as an essential component of personalized cancer medicine due to its high throughput and low per-base cost. However, no sufficient guidelines for implementing NGS as a clinical molecular pathology test are established in Korea. To ensure clinical grade quality without inhibiting adoption of NGS, a taskforce team assembled by the Korean Society of Pathologists developed laboratory guidelines for NGS cancer panel testing procedures and requirements for clinical implementation of NGS...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535584/molecular-testing-of-lymphoproliferative-disorders-current-status-and-perspectives
#14
REVIEW
Yoon Kyung Jeon, Sun Och Yoon, Jin Ho Paik, Young A Kim, Bong Kyung Shin, Hyun-Jung Kim, Hee Jeong Cha, Ji Eun Kim, Jooryung Huh, Young-Hyeh Ko
Molecular pathologic testing plays an important role for the diagnosis, prognostication and decision of treatment strategy in lymphoproliferative disease. Here, we briefly review the molecular tests currently used for lymphoproliferative disease and those which will be implicated in clinical practice in the near future. Specifically, this guideline addresses the clonality test for B- and T-cell proliferative lesions, molecular cytogenetic tests for malignant lymphoma, determination of cell-of-origin in diffuse large B-cell lymphoma, and molecular genetic alterations incorporated in the 2016 revision of the World Health Organization classification of lymphoid neoplasms...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535583/molecular-testing-of-brain-tumor
#15
REVIEW
Sung-Hye Park, Jaekyung Won, Seong-Ik Kim, Yujin Lee, Chul-Kee Park, Seung-Ki Kim, Seung-Hong Choi
The World Health Organization (WHO) classification of central nervous system (CNS) tumors was revised in 2016 with a basis on the integrated diagnosis of molecular genetics. We herein provide the guidelines for using molecular genetic tests in routine pathological practice for an accurate diagnosis and appropriate management. While astrocytomas and IDH-mutant (secondary) glioblastomas are characterized by the mutational status of IDH, TP53 , and ATRX , oligodendrogliomas have a 1p/19q codeletion and mutations in IDH, CIC , FUBP1 , and the promoter region of telomerase reverse transcriptase ( TERTp )...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535582/a-rare-case-of-nodular-mucinosis-of-the-breast
#16
Hyun Min Koh, Young Hee Maeng, Bo Geun Jang, Jae Hyuk Choi, Chang Lim Hyun
No abstract text is available yet for this article.
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28535581/human-papillomavirus-infection-associated-adenoid-cystic-carcinoma-of-the-hard-palate
#17
Arthur Minwoo Chung, Dong Il Sun, Eun Sun Jung, Youn Soo Lee
No abstract text is available yet for this article.
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28427247/molecular-testing-of-lung-cancers
#18
REVIEW
Hyo Sup Shim, Yoon-La Choi, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Mee Sook Roh, Tae-Jung Kim, Seung Yeon Ha, Jin-Haeng Chung, Se Jin Jang, Geon Kook Lee
Targeted therapies guided by molecular diagnostics have become a standard treatment of lung cancer. Epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) rearrangements are currently used as the best predictive biomarkers for EGFR tyrosine kinase inhibitors and ALK inhibitors, respectively. Besides EGFR and ALK, the list of druggable genetic alterations has been growing, including ROS1 rearrangements, RET rearrangements, and MET alterations. In this situation, pathologists should carefully manage clinical samples for molecular testing and should do their best to quickly and accurately identify patients who will benefit from precision therapeutics...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28415159/comparison-of-unsatisfactory-samples-from-conventional-smear-versus-liquid-based-cytology-in-uterine-cervical-cancer-screening-test
#19
Hoiseon Jeong, Sung Ran Hong, Seoung-Wan Chae, So-Young Jin, Hye Kyoung Yoon, Juhie Lee, Eun Kyung Kim, Sook Tai Ha, Sung Nam Kim, Eun-Jung Park, Jong Jae Jung, Sun Hee Sung, Sung-Chul Lim
BACKGROUND: Cervical cytology for uterine cervical cancer screening has transitioned from conventional smear (CS) to liquid-based cytology (LBC), which has many advantages. The aim of this study was to compare the proportion of unsatisfactory specimens from CS versus LBC at multiple institutions including general hospitals and commercial laboratories. METHODS: Each participating institution provided a minimum of 500 Papanicolaou (Pap) test results for analysis. Pap tests were classified according to the participating institution (commercial laboratory or general hospital) and the processing method (CS, ThinPrep, SurePath, or CellPrep)...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28415158/clinicopathological-study-of-18-cases-of-inflammatory-myofibroblastic-tumors-with-reference-to-alk-1-expression-5-year-experience-in-a-tertiary-care-center
#20
Ramesh Babu Telugu, Anne Jennifer Prabhu, Nobin Babu Kalappurayil, John Mathai, Birla Roy Gnanamuthu, Marie Therese Manipadam
BACKGROUND: Inflammatory myofibroblastic tumor is a histopathologically distinctive neoplasm of children and young adults. According to World Health Organization (WHO) classification, inflammatory myofibroblastic tumor is an intermediate-grade tumor, with potential for recurrence and rare metastasis. There are no definite histopathologic, molecular, or cytogenetic features to predict malignant transformation, recurrence, or metastasis. METHODS: A 5-year retrospective study of histopathologically diagnosed inflammatory myofibroblastic tumors of various anatomic sites was conducted to correlate anaplastic lymphoma kinase-1 (ALK-1) expression with histological atypia, multicentric origin of tumor, recurrence, and metastasis...
May 2017: Journal of Pathology and Translational Medicine
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