Acute abdominal pain caused by spontaneous hemorrhagic infarction of a solitary plexiform neurofibroma of lesser omentum.

A 32-year-old female patient visited the emergency room because of sudden onset of abdominal pain, which was found to be induced by hemorrhagic infarction of a plexiform neurofibroma arising from the lesser omentum. No other classic clinical characteristics of systemic von Recklinghausen's disease had been seen up until now. The tumor, classified as sporadic plexiform neurofibroma, rarely occurs in the digestive tract. This diagnosis was confirmed by exploratory laparotomy with complete resection of the tumor. Here, we describe the rare case of a sporadic intra-abdominal plexiform neurofibroma and discuss the clinical characteristics and management of plexiform neurofibroma.