MAGNETIC-RESONANCE-IMAGING OF PERITONEAL LEIOMYOSARCOMATOSIS

Diffuse peritoneal and omental metastatic disease is a well recognized phenomenon and usually results from primary gastrointestinal tract or epithelial ovarian tumours. Leiomyosarcoma, an uncommon malignant neoplasm of smooth muscle origin that tends to arise in the genitourinary tract, retroperitoneum, alimentary tract or soft tissues, only infrequently gives rise to peritoneal or omental metastases. We report a patient with a primary high-grade leiomyosarcoma of the uterus, who subsequently developed diffuse peritoneal metastatic disease, demonstrated by magnetic resonance imaging (MRI) and confirmed surgically. These unusual MRI appearances do not appear to have been reported previously.