Diagnosis and management of fetal neuroblastoma.

At 36 weeks' gestation, in a 30-year-old patient, routine prenatal ultrasound examination revealed a cystic mass in the left adrenal gland. The pregnancy was uneventful, and at delivery the infant had a palpable left flank mass confirmed by ultrasound and computed tomography scan. There were no metastases. On the second day of life, a 5 cm cystic stage-I neuroblastoma was removed by adrenalectomy. The infant had an uneventful recovery, required no further treatment, and remains free of disease 26 months later.