Article

Giant serous cystadenoma arising from an accessory ovary in a morbidly obese 11-year-old girl: a case report

Department of Obstetrics and Gynecology, Ponce School of Medicine, Ponce, Puerto Rico.
Journal of Medical Case Reports 02/2008; 2:7. DOI: 10.1186/1752-1947-2-7
Source: PubMed

ABSTRACT Ectopic ovarian tissue is an unusual entity, especially if it is an isolated finding thought to be of embryological origin.
An 11-year-old, morbidly obese female presented with left flank pain, nausea, and irregular menses. Various diagnostic procedures suggested a large ovarian cyst, and surgical resection was performed.
Histologically, the resected mass was not of tubal origin as suspected, but a serous cystadenoma arising from ovarian tissue. The patient's two normal, eutopic ovaries were completely uninvolved and unaffected. A tumor arising from ectopic ovarian tissue of embryological origin seems the most likely explanation. We suggest refining the descriptive nomenclature so as to more precisely characterize the various presentations of ovarian ectopia.

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    ABSTRACT: So far, only 21 descriptions of accessory ovary have been reported since 1959. However, the true incidence of this condition is probably underestimated because the pathologic forms (ovarian tumors and endometriosis) are probably more often diagnosed and reported. We report the incident discovery of one right accessory ovary during a laparoscopic tubal sterilization. This accessory ovary was asymptomatic and structurally normal. It was connected serial to the right utero-ovarian ligament and left in situ. There was no other anomaly. Gynaecologic surgeons must be aware of this possibility when removal of the whole ovarian tissue is needed.
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