Criteria for a "true" ovarian ectopic pregnancy are controversial. One commonly cited set of criteria was proposed by Spiegelberg and include
- the tube must be intact and separate from the ovary
- the gestational sac must occupy the normal position of the ovary
- the gestational sac must be connected to the uterus by the uteroovarian ligament, and
- ovarian tissue must be demonstrated within the wall of the sac
Removal of an ovarian ectopic pregnancy requires partial (or sometimes complete) removal of an ovary. Bleeding can usually be controlled relatively easily if the ovary is sacrificed.