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Ultrasound Diagnosis of Polycystic Ovaries

Ultrasound characterization of ovarian morphology has become an important aspect of gynecological endocrinology. The classic ultrasound features of polycystic ovaries are an increased number of small follicles together with abundant stroma. The exact criteria vary according to the ultrasound technique used. The method, however, has been validated both laparoscopically and histologically. Using laparoscopic inspection as a reference test, ultrasonography was calculated to have a sensitivity of 91% and a specificity of 100%. As a group, anovulatory women with PCO have the classic endocrine features of polycystic ovarian syndrome, but in a proportion of cases the finding of PCO at scan appears to be irrelevant to the presenting disorder. Ultrasound diagnosis of PCO is also limited by its inability to display either ovary in about 16% of women.