Abstract

Most commonly neurilemmomas are found in a subcutaneous tissues on the extremities, heads and neck or in a mediastinum and retroperitoneal soft tissues, but only rarely in the other sites such as mesentery. Malignant degeneration or local recurrence of neurilemmoma is rare event and only a fell cafes have teen reported. We experienced a case of the recurrent neurilemmoma of mesentery in a 29-year-old man, who took the abdominal tumor resection under the diagnosis of neurilemmoma of mesentery about 18 months ago. Grossly the tumor was well encapsulated and excessively large sized (22×20×10cm). Histopathologically, it was composed of two types of tissue, Antoni types A and B. Focally, Hemorragic and necrotic areas were also seen. But malignant evidence was not observed.