Extra-gastrointestinal stromal tumour. Report of primary tumour in the omentum

Revista Medica del Hospital General de Mexico Pub Date : 2018-10-01 DOI:10.1016/j.hgmx.2016.12.002

E.N. Valdes-Peregrina , M. Hernández-González , O. de León-Pacheco , S. Mendoza-Ramírez

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引用次数: 1

Abstract

Gastrointestinal stromal tumours (GISTs) are the most common mesenchymal tumour in the gastrointestinal tract. More than half of these originate in the stomach, the rest in the small intestine, colon, rectum and oesophagus, and rarely in the omentum.

Case report

A 48-year-old woman, with painful abdominal growth developing over two years. Radiological studies showed a heterogeneous solid lesion in the pelvis, so she underwent surgery and the omentum was resected, no evidence of a tumour was found in the gastrointestinal tract. The omentum measured 50 cm × 30 cm × 15 cm. Its surface was heterogeneous and showed multiple nodules of varying sizes. A microscopically diffuse pattern of spindle cells was observed, some of them epithelioid, with three mitoses in 50 high-power fields. The immunohistochemical study is positive for CD117 and DOG-1.

E-GIST should be considered for the differential diagnosis of patients with multinodular lesions in the omentum and mesentery.

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胃肠道外间质瘤。原发肿瘤在网膜的报告

胃肠道间质瘤(gist)是胃肠道最常见的间质肿瘤。其中一半以上发生在胃，其余的发生在小肠、结肠、直肠和食道，很少发生在网膜。病例报告:一名48岁女性，腹部疼痛增长超过两年。放射学检查显示骨盆有非均匀的实性病变，因此她接受了手术，切除了大网膜，胃肠道没有发现肿瘤的证据。网膜尺寸为50厘米× 30厘米× 15厘米。其表面呈非均匀分布，可见多个大小不等的结节。显微镜下观察到梭形细胞弥漫性分布，部分呈上皮样，在50个高倍视野中有3个有丝分裂。免疫组化CD117和DOG-1阳性。对于网膜和肠系膜多结节性病变患者，应考虑E-GIST的鉴别诊断。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Medica del Hospital General de Mexico

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： The Medical Journal of the Hospital General de Mexico is the official organ of the Medical Society of the Hospital General de Mexico. The journal accepts articles in Spanish or in English on the field of hospital medicine. The journal publishes original articles, clinical cases, reviews articles, history notes, issues on medical education, short communications and editorials at the invitation of the Society. All articles are double blind peer reviewed by at least 2 reviewers and finally classified as accepted or rejected by the Editorial Board.