A term used to describe masses or structures remaining in the ovary following a stimulation process during assisted reproduction techniques. Diagnosis is generally carried out using ultrasound imaging.
Its origin is associated with:
- The continued existence of a follicle(s) that did not ovulate.
- The late development of a follicle that continued growing following stimulation.
Should ultrasound dimensions be above 3cm, it will be denominated residual cyst.
The treatment of a residual follicle may consist of:
- a wait-and-see approach: consists of waiting until the next menstruation and checking to see if it has disappeared.
- an active approach: consists of prescribing hormone contraception to block endogenous hormonal support and encourage the follicle to disappear.
The condition will persist only in a limited number of cases and, when this occurs, specialist gynaecological intervention is required.