Iliac vein compression syndrome is a rare disorder that causes oedema of one or both legs, with or without thrombosis. This current case report describes a 71-year-old male patient with left iliac vein compression caused by a bladder diverticulum that occurred secondary to chronic prostatic hyperplasia. The patient presented with left leg oedema without deep vein thrombosis. Contrast-enhanced computed tomography of the abdomen and pelvis, Doppler ultrasound imaging of the lower limb veins and magnetic resonance imaging helped confirm the diagnosis. The patient initially underwent urinary catheter placement, which relieved urinary retention and iliac vein compression. He subsequently underwent bladder diverticulectomy and transurethral prostatectomy. The postoperative clinical course was uneventful. During the 1.5-year follow-up, the patient did not have lower extremity oedema. Bladder diverticulum is an extremely rare cause of iliac vein compression syndrome, and only five such cases, including this one, have been reported to date. This article presents a literature review of these cases and a summary of the diagnosis and treatment experience.
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