Leiomyomatosis in the pelvic lymph node and peritoneum.

This paper is concerned with a rare clinical entity, i.e. leiomyomatosis of pelvic promontory lymph node in a 50-year-old Japanese woman and leiomyomatosis peritonealis disseminata in a 41-year-old one. Despite such daughter nodules, all of the leiomyomas showed benign histological features. Morphogenesis of the discontinuous leiomyomas was discussed in relation to pelvic endometriosis. Because of a favorable prognosis in the leiomyomatosis, no more aggressive therapy than that necessary to extirpate the tumor is recommended.