Case 64 A neonatal girl with an abdominal mass. (A,B) Longitudinal gray-scale and Doppler sonograms of the pelvis demonstrate a markedly enlarged (> 6 cm in diameter), heterogeneously hypoechoic left ovary containing multiple peripheral cysts (arrows). The ovary shows almost no internal Doppler signal. • Ovarian torsion:

Clinical Presentation
Imaging Findings

Differential Diagnosis
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