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The sonographic findings in 19 cases of surgically proven torsion of the ovary are described. In all cases the affected ovary was markedly enlarged; in 32% of cases a small amount of fluid was detected in the cul-de-sac. More significant in terms of specificity was the demonstration in 14 (74%) of the 19 cases of small cystic structures scattered around the periphery of the organ. Sonographic demonstration of these structures, presumably prominent follicles, can suggest the preoperative diagnosis of ovarian torsion.
Graif et al. (Sat,) studied this question.