PMID: 32156856Mar 12, 2020Paper

A Case Report of Gastrointestinal Bleeding with Difficulty in Diagnosis

Gan to kagaku ryoho. Cancer & chemotherapy
Hirofumi HasegawaMasayuki Kitamura

Abstract

The authors report a case involving a 55-year-old female patient who presented with melena and anemia 8 years ago. Esophagogastroduodenoscopy, colonoscopy, and CT did not reveal any sign of lesions except multiple uterine myoma. On reevaluation after the onset of melena, we did not find any lesions. However, the patient had a recurrent episode of melena with progressive anemia(Hb level 12.8 g/dL→9.8 g/dL). CT revealed a 29mm mass in the right side of the pelvis, which was retrospectively observed in the past CT scan, although its position had changed. We suspected gastrointestinal stromal tumor (GIST). Small intestine fluoroscopy revealed the tumor with effusion of barium inside the translucent areas of the ileum. For diagnostic treatment, laparoscopic partial jejunum resection was performed. Pathological diagnostic examination revealed that the tumor consisted of spindle cell disarray with moderate density, fewer heterocysts, and rare mitosis. The tumor cells were c-kit positive and CD34 negative in immunohistochemistry. All the results were consistent with GIST. Eight years had passed before diagnosis and surgical treatment were performed. This case report emphasizes the difficulty of diagnose of GIST because of its low malig...Continue Reading

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