Abstract
Background and Aims: Gastrointestinal stromal tumors are mesenchymal tumors mostly prevalent at middle ages. Since endoscopy is insufficient for evaluation of gastrointestinal stromal tumors, endoscopic ultrasound is preferred and mostly used imaging technique. Gastrointestinal stromal tumor lesions with high mitotic activity and large tumor size are usually considered to have a malign potential. We aimed to investigate the correlation between the endoscopic ultrasound findings and histopathologic characteristics of gastrointestinal stromal tumors. Materials and methods: Twenty five patients who underwent endoscopic ultrasound fort he suspicion of gastrointestinal stromal tumor and have the definitive diagnosis of gastrointestinal stromal tumor histopathologically were included to the study (13M, 12F, mean age 52.1±16.3). Results: All gastrointestinal stromal tumors were located in the stomach; five of them in the fundus, 17 in the corpus and 3 in the antrum. There were ulcerations on 10 (%40) gastrointestinal stromal tumor lesions. Mean diameter of the gastrointestinal stromal tumors measured during endoscopic ultrasound evaluation (51.59±20.37mm) was highly correlated with the real tumor size (54.30±24.86 mm, r: 0.817, p
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