Adventitial Cystic Disease of the External Iliac Vein in a Patient Presenting with Leg Edema

ABSTRACT

A 69-year-old male patient presented with a 2 week history of left leg swelling. The past medical history was unremarkable. On physical examination, his left leg was swollen up to the thigh and Homan's sign was positive. Duplex ultrasound revealed a solid and cystic lesion localized only at the iliac vein. Surgical exploration was performed under the suspicion of adventitial cystic disease (ACD). The final pathologic diagnosis was ACD. Although ACD has usually been reported in arterial segments, venous involvement has been reported. In the majority of these reported patients, the common femoral vein is associated with venous ACD. According to a Medline search, there have been nine reports related with venous ACD. Only two cases of external iliac vein (EIV) involvement of ACD have been previously reported, including one Korean report. We report here on a case of recently experienced EIV ACD.