A 5 cm longitudinal incision was made on the postero-superior surface of the broad ligament, behind the fallopian tube. The cyst was dissected of its attachment to the posterior leaf of the broad ligament and excised. Haemostasis was achieved. The left ureter was normal. Prophylactic tocolytic therapy was given and the patient made an uneventful recovery to continue her pregnancy.
Paraovarian cysts are of three types i.e. mesothelial, paramesonephric or mesonephric.
These cysts are usually small and asymptomatic occurring as incidental findings during other pelvic surgeries. However, they may attain a large size, as was seen in our case. These large cysts are usually symptomatic and occur in a younger population. On gross examination, these cysts are singleand unilocular. They are always extraperitoneal or intraligamentary with the tube stretched out over the superior surface of the cyst.