ARRS Case of the Week


Case Author: Sarah Erickson, MD, University of Virginia Health System


24-year-old woman (gravida 3, para 2) at 16 weeks and 5 days of pregnancy with hypertensive urgency, marked proteinuria, acute hyperthyroidism, and β-HCG level greater than 1,000,000 mIU/mL.

Imaging Findings

Transverse ultrasound image (A) through an enlarged (8 cm thick) placenta shows internal cystic spaces (arrowheads) and adjacent amniotic fluid. Sagittal ultrasound image (B) shows the same enlarged placenta and fetal parts (arrows). Transverse ultrasound image (C) of the enlarged (10 × 5 cm) right ovary shows large cystic structures (calipers) within the ovary. Not shown is a similar-appearing left ovary.


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