A Case of Duodenal Neuroendocrine Tumor Accompanied by Gastrointestinal Stromal Tumors in Type 1 Neurofibromatosis Complicated by Life-Threatening Vascular Lesions

[b]BACKGROUND[/b] Type 1 neurofibromatosis (NF1) is known to be associated with not only neurogenic tumors but also gastrointestinal (GI) neoplasms. However, there are few reports on vascular lesions and the incidence is unknown. [b]CASE REPORT[/b] We report here the case of a 45-year-old woman with a history of NF1 referred to our hospital for the purpose of detailed examination for positive fecal occult blood test. On the basis of the...