[Left lateral predisposition of endometrioma].
OBJECTIVE
To investigate whether asymmetry exists in the left- and right-handed distribution of ovarian cystic lesions in women with endometriosis.


METHODS
We evaluate operative reports of women who underwent first line surgical treatment of endometrioma (n=154) from January 2000 to December 2002. Data of all operative findings consisted of a written report, and a diagram, the revised American Fertility Society classification of endometriosis.


RESULTS
Endometrioma was found in the left ovary (n=81), in the right ovary (n=39), and bilaterally (n=34). Left ovarian endometrioma was found more frequently (67,5%) than the right endometrioma (P<.001, odds ratio 2.3, 95% confidence interval 1.5, 3.7). This trend was not related to the size of the endometrioma.


CONCLUSIONS
Our results confirm a left lateral predisposition of ovarian endometrioma. It is probably caused by the decreased fluid movement in the left side of the pelvis because of the presence of sigmoid colon. These findings may support the theory that the origin of endometriosis is from the regurgitated endometrial cells.
Sznurkowski
Jacek
J
Klinika Ginekologii AM w Gdańsku.
Emerich
Janusz
J
D000328:Adult; D016001:Confidence Intervals; D004715:Endometriosis / Q000473:pathology* / Q000601:surgery; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008875:Middle Aged; D016017:Odds Ratio; D010048:Ovarian Cysts / Q000473:pathology* / Q000601:surgery; D012189:Retrospective Studies