Sonographic detection of fetal extrathoracic pulmonary sequestration.

The use of dingnostic ultrasonography during pregnancy has gained widespread acceptance. Unquestionably this diagnostic modality facilitates discovery of fetal anomalies that might otherwise re· main unsuspected. Such discoveries can produce therapeutic dilemmas, but may permit the obstetrician to tailor antepartum and intrapartum care in accordance with potential deleterious effects of the anomalv on the fetus or newborn , and the emotional disturbance that such discovery provokes in patients and family. \Ve report a case of retroperitoneal pulmonm·y sequestration that was diagnosed during the antenatal period.