LAUSR

Ovarian hyperstimulation syndrome (OHSS) includes ovarian enlargement and ascites. It is usually mild but can be, rarely, fatal. Deep vein thrombosis (DVT) is among the potentially fatal complications of OHSS. During pregnancy, DVT is more common in the lower extremities than in the upper part of the body, but OHSS‐related DVT occurs more frequently in the upper part. Internal jugular vein thrombosis is considered rare, and duplex ultrasound is the appropriate examination for its diagnosis. We present a rare case of internal jugular vein thrombosis following OHSS. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 45:450–452, 2017