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Comprehensive clinicopathologic characteristics of intraabdominal neurogenic tumors:Single institution experience

World Journal of Clinical Cases 2021年第10期9卷 2218-2227页

作者： Cem Simsek Meral Uner Feride Ozkara Orkun Akman Aytekin Akyol Taylan Kav Cenk Sokmensuer Gokhan Gedikoglu Department of Gastroenterology Hacettepe UniversityAnkara 06230Turkey Department of Pathology Hacettepe UniversityAnkara 06230Turkey Department of Internal Medicine Hacettepe UniversityAnkara 06230Turkey Department of Pathology Yozgat City HospitalYozgat 66100Turkey

BACKGROUND neurogenic tumors are rare but represent an important consideration in the differential diagnosis of abdominal mesenchymal *** on their incidence,pathological features and clinical characteristics are *** To advance the overall knowledge on the histologic,immunohistochemical,clinical and radiologic characteristics of neurogenic tumors through this case *** An established database of a nationwide tertiary referral center,covering a 15-year period(2005 and 2020),was retrospectively *** of neurogenic tumor cases were confirmed by two experts following review of the macroscopic,histological and immunohistochemical records along with findings from analysis of archived tissue sections for each included *** microarrays were constructed for cases lacking necessary immunohistochemical *** data and follow-up information were collected from the hospital records and the patients themselves,when *** The study included 19 cases of intraabdominal neurogenic tumors,representing 12 women and 7 men, between 18 and 86 years of age (median: 51 years). Finalconfirmed diagnoses were 12 schwannomas, 2 diffuse submucosal neurofibromatoses,2 ganglioneuromas, 2 malignant peripheral sheath nerve tumors,and 1 mucosal Schwann cell hamartoma. Sizes of the tumors were variable, with amedian diameter of 4 cm;the two largest (> 10 cm) were schwannomas. Themajority of cases were asymptomatic at presentation, but the most frequentsymptom was abdominal pain. Gastrointestinal tract lesions were detected withendoscopy and extra-luminal lesions were detected with cross-sectional *** cases were S100-positive and CD117-negative;most cases were negative fordesmin, epithelial membrane antigen, smooth muscle actin and CD34. In all but 5cases, the Ki67 proliferation index was ≤ 1%.CONCLUSION Re-evaluation of 19 cases of abdominal neurogenic tumors demonstrated considerablevariability in clinicopathologic ch

关键词： neurogenic tumors Mesenchymal tumors Schwannoma Neurofibroma Malignant peripheral sheath tumor Intraabdominal

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