Uterine incarceration is a rare complication of pregnancy, usually pre
senting between 12 and 20 weeks' gestation, when the gravid uterus nor
mally ascends through the pelvic brim. Conditions such as pelvic infla
mmatory disease, endometriosis, postoperative adhesions, posterior wal
l leiomyomas, and pelvic contraction may lead to fixed retroflexion of
the uterus, predisposing to this condition. A case of incarceration i
s presented. Clinical features, diagnosis, treatment, and potential co
mplications are discussed. Copyright (C) 1997 by W.B. Saunders Company