A Case of Gastro-Intestinal Stromal Tumor Which had Multiple Liver Metastases

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  • 多発肝転移を伴った横行結腸原発Gastro-Intestinal Stromal Tumorの１切除例
  • タハツ カン テンイ オ トモナッタ オウコウ ケッチョウ ゲンパツ Gastro-intestinal stromal tumor ノ 1セツジョレイ
  • ショウレイ ホウコク タハツ カン テンイ オ トモナッタ オウコウ ケッチョウ ゲンパツ Gastro-Intestinal Stromal Tumor ノ 1 セツジョレイ

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Abstract

We report a case of a rare gastrointestinal stromal tumor(GIST)of the transverse colon with multiple liver metastases. A 74 years old man was hospitalized in emergency because of revealing melena. 9cm diameter mass in the transverse colon was found in colonoscopy and also multiple liver metastasis in CT. The patient underwent right hemicolectomy under the diagnosis of submucosal tumor. Histopathological findings showed the fascicular growth of spindle cells, and tumor cells presented palisading formation. Even though immunohistochemical examination showed tumor cell to be only a few positive for S-100, negative for c-Kit, nor Desmin, nor SMA, we diagnosed the case as GIST due to presenting histological palisading. We administered imatinib therapy after the surgery and the patient is doing well at this time.

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