TORSION OF A NORMAL ADNEXA IN A PREMENARCHEAL GIRL - MRI FINDINGS

Torsion of the adnexa can be the cause of abdominal pain. An immediate diagnosis is very important because early surgical intervention is th e only way to save the ovary from necrosis. Torsion of a normal adnexa is rare, but occurs more frequently than is generally appreciated. If US findings are equivocal, MRI can provide additional information. In our case the MRI findings leading to the diagnosis of ovarian torsion were: (a) A medial ovarian mass existed with dislocation of the uteru s to the affected side with hyperintense, cystic lesions on T2-weighte d images at the periphery of the ovary. (b) Beaked protrusion of the m ass continuing in a band-like structure connecting it with the uterus obviously represented the Fallopian tube. (c) Low and inhomogenous sig nal intensity of the stroma on T1- and T2- weighted images and lack of gadolinium uptake were indicative of infarction.