Primary stromal tumor of the omentum: Report of a case
A Borazan, Mustafa Ozkan Gun, Ziya Karamanoglu
article (Uluslararası, Hakemli) | Yazar(lar): A Borazan, Mustafa Ozkan Gun, Ziya Karamanoglu | Yıl: 2006 | Dergi/Kurum: SURGERY TODAY | İndeks: WOS.SCI | DOI: 10.1007/s00595-004-3280-9 | Anahtar Kelimeler: stromal tumor, omentum, immunohistochemistry — Özet: We report the case of a primary extragastrointestinal stromal
We report the case of a primary extragastrointestinal stromal tumor (EGIST) found in the omentum of a 65-year-old woman. The resected specimen, which measured 6cm at its largest point, consisted of an outer solid part and inner uniloculated cysts. Microscopically, the tumor was characterized by interlacing bundles of elongated spindle cells, with the nuclei showing a focal palisading pattern; however, skenoid fibers were not observed anywhere and mitoses were absent. Immunohistochemically, the tumor was negative for smooth-muscle actin, desmin, and S-100 protein, but it was positive for CD117 and CD34. The microscopic features were consistent with a gastrointestinal stromal tumor.