External iliac vein compression and lower-extremity swelling caused by an iliopectineal ganglion: a case report

Background A hip joint ganglion is a rare cause of lower-extremity swelling. Case presentation We report a case of a Japanese patient with ganglion of the hip with compression of the external iliac/femoral vein that produced signs and symptoms mimicking those of deep vein thrombosis. Conclusions Needle aspiration of the ganglion was performed, and swelling of the lower extremity promptly decreased. At 7.5 years after aspiration, there was no recurrence of swelling of the leg. Although the recurrence rate for ganglions after needle aspiration is high, it is worthwhile trying aspiration first.