Background: In newborn the finding of adrenal gland hemorrhage is not uncommon. Only few cases of prenatal diagnosis of fetal adrenal bleeding by sonography have been reported.
Case: In a 28-year-old nulliparous pregnant woman, routine sonography performed in 35 + 2 weeks of gestational age showed a cystic mass on the upper pole of the right kidney of a male fetus with normal biophysical profile and Doppler flow indices. Sonographic examination demonstrated a spontaneous remission within 3 weeks after uncomplicated vaginal delivery.
Conclusion: In the management of adrenal gland hemorrhage of the fetus or newborn, control of remission by sonography is a sufficient tool for differentiation against other tumors and is helpful in preventing unintended surgical removal of the adrenal gland.