Ballantyne syndrome or mirror syndrome is a rare entity with the classic triad of fetal hydrops, generalized maternal edema and placentomegaly. There is high perinatal morbidity and mortality. The case of a 26 year-old with 25 weeks of gestation hospitalized at Instituto Materno Perinatal emergency for leg edema and decreased fetal movements is reported. Fetal hydrops and placentomegaly were diagnosed by ultrasound. Preeclampsia and fetal death occurred during hospitalization. Following vaginal delivery there was rapid improvement of symptoms and the patient was discharged 48 hours postpartum.

Sacrococcygeal teratoma is the most common teratoma in the neonatal period. Fetal and neonatal mortality is high due to its large size. The case of a 27 year-old patient, 25 weeks gestation, who was admitted to the Perinatal Maternal National Institute with the diagnosis of sacrococcygeal teratoma is reported. During her hospitalization there was absence of fetal heartbeats. Delivery was vaginal and the patient did not present any complications; she was discharged in 24 hours.

Ballantyne syndrome or mirror syndrome is a rare entity with the classic triad of fetal hydrops, generalized maternal edema and placentomegaly. There is high perinatal morbidity and mortality. The case of a 26 year-old with 25 weeks of gestation hospitalized at Instituto Materno Perinatal emergency for leg edema and decreased fetal movements is reported. Fetal hydrops and placentomegaly were diagnosed by ultrasound. Preeclampsia and fetal death occurred during hospitalization. Following vaginal delivery there was rapid improvement of symptoms and the patient was discharged 48 hours postpartum.