A case of multiple gastrointestinal stromal tumors of the duodenum and jejunum with von Recklinghausen's disease in which CT during angiography was useful for localization and diagnosis

A 50-year-old man with von Recklinghausen's disease was admitted to our hospital for anemia. Abdominal computed tomography and small intestinal fiberscopy revealed a submucosal tumor in the third portion of the duodenum. CT during angiography showed three small tumor stains on the jejunum, which were not able to be diagnosed on contrast-enhanced CT. The operative findings showed a tumor in the third portion of the duodenum and three small tumors in the jejunum. These tumors, which were immunohistochemically positive for KIT, were diagnosed as multiple gastrointestinal stromal tumors of the duodenum and jejunum. For this case, CT during angiography was useful for localization and diagnosis of multiple lesions on the small intestines.