METHOD AND RESULTS: Between 1993 and 2000, 7529 @entity1 underwent cesarean section (24.3% of 31,798 delivering @entity1 ) at University Hospital in Pozna  . There were 52 cases of simultaneous adnexal surgery among them because of @entity43 (1 case/144 abdominal deliveries; 1 case/612 pregnancies). In 43 cases @entity5 was accidentally diagnosed at time of operative delivery (1/174 abdominal deliveries). The average age of all delivering @entity1 was 27 +/- 7 yrs, among abdominally delivering 28 +/- 7 yrs. The respective value for @entity1 with @entity43 was significantly higher--30 +/- 7 yrs. The mean diameter of the @entity5 was 4.8 +/- 4.7 cm, but the largest 30 cm. In 9 cases adnexectomy was performed, remaining @entity1 were treated conservatively. @entity44 was diagnosed in 26.9%, cystis simplex in 21.2%, @entity81 in 15.4%, @entity46 and luteal cyst every in 9.6%. There were two cases of @entity5 , both diagnosed earlier: @entity5000 and @entity420 . CONCLUSIONS: 1. incidence of @entity43 of pregnant @entity1 was previously probably underestimated, 2. the risk of @entity43 is relatively low.

[The incidence of XXXX in the third trimester of pregnancy].

@entity1 :: ('9606', 'Species') :: ['women', 'patients'] @entity43 :: ('MESH:D010051', 'Disease') :: ['ovarian tumors', 'ovarian tumor', 'malignant ovarian tumor'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'malignant tumors'] @entity5000 :: ('MESH:D004407', 'Disease') :: ['dysgerminoma'] @entity46 :: ('MESH:D004715', 'Disease') :: ['endometriosis'] @entity81 :: ('MESH:D005350', 'Disease') :: ['fibroma'] @entity420 :: ('MESH:D000230', 'Disease') :: ['adenocarcinoma'] @entity44 :: ('MESH:D013724', 'Disease') :: ['Benign cyst teratoma']
@entity43 :: (MESH:D010051,Disease) :: ['ovarian tumors']
