Unthreatened late pregnancy with a huge mucinous cyst adenoma of the left ovary: report of an unusual case.

Benign cystadenomas or cystic teratomas are most frequently diagnosed in pregnancy. In the latter half of pregnancy ovarian tumors are particularly difficult to diagnose. In this report we present a case of a huge mucinous cyst adenoma of the ovary diagnosed in the 26th week of pregnancy. To our knowledge this is the first report of a case of unthreatened late pregnancy with a huge mucinous cyst adenoma of the ovary.