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.

Abdominal leiomyomas are extremely rare intra-abdominal tumors. We present a the case of a 24-year-old male with an abdominal leiomyoma who presented with a chief complaint of a huge mass in the midepigastrium that was suddenly detected 5 days prior to admission. An abdominal leiomyoma with central hemorrhage was found on exploratory laparotomy; the tumor was completely resected. To the best of our knowledge, no similar case has been reported in the literature.