Failure of prostaglandin induction in an obstructive müllerian abnormality.

Failure of prostaglandins E 2 and F 2α to induce labor for intrauterine fetal death is infrequent. The factors contributing to these failures remain unclear. We describe a case of failed induction with the use of a combination of vaginal prostaglandin E 2 and systemic prostaglandin F 2α in a 24-week intrauterine fetal death in association with a noncommunicating rudimentary uterine horn. The implications of this mullerian abnormality for theories of parturition are discussed.