A report of three cases of exophytic gastrointestinal stromal tumor detected by transabdominal ultrasound
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Gastrointestinal stromal tumors (GISTs) are the most common submucosal tumors of the stomach. GISTs are often detected by esophagogastroduodenal endoscopy (EGD). However, the exophytic GIST type is relatively rare and difficult to detect by EGD. Most exophytic GISTs found are large and symptomatic. We present three cases with exophytic GISTs less than 5 cm in diameter detected by transabdominal ultrasound (TUS). All patients were asymptomatic and TUS revealed hypoechoic solid masses 2–3 cm in diameter between the stomach and left lobe of the liver. In contrast, no tumor in the stomach was detected by esophagogastroduodenal endoscopy. Endoscopic ultrasound and enhanced CT showed gastric tumors protruding outward. All three cases underwent partial gastrectomy, and the excised tumor was diagnosed as low-grade GIST. In conclusion, TUS can be a starting point for diagnosing exophytic GISTs of the stomach.
KeywordsGastrointestinal stromal tumor Exophytic type Transabdominal ultrasound
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Conflict of interest
The authors declare that they have no conflict of interest.
Human rights statements and informed consent
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5). Informed consent was obtained from all patients for being included in the report.
- 3.Kawaguchi M, Sanji T, Moriyasu F, et al. Clinical treatment of GIST-incidence of GIST among patients with submucosal tumors and its clinical treatment. I to Cho (Stomach and Intestine). 2001;36:1137–45 (in Japanese).Google Scholar