[Sonographic observations and difficulties in the differential diagnosis of an abdominal tumor in pregnancy].

Report about a big tumor in pregnancy showing solid and cystic parts by ultrasound. Primary it was described in the 23. gestational week laying above the umbilicus. During pregnancy it became smaller and changed its position. It was diagnosed as ovarian tumor. Operation 6 weeks after childbirth resulted a stuck myoma with regressive changes. The differentialdiagnostic difficulties and the therapeutical occurances are discussed.