Leiomyoma is one of the rarest solid tumours of the ovary. We report a case
of a degenerated ovarian leiomyoma associated with pregnancy. MR findings
are identical to those of degenerated uterine leiomyoma and it is difficult
to differentiate between them. Ovarian leiomyoma should therefore be inclu
ded in the differential diagnosis of subserosal uterine leiomyoma.