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Syndrome reference sheet
Generated 13 Oct 2026
Cardiology · Cardiology / Vascular medicine

May–Thurner syndrome

Also known as: Cockett syndrome; Iliac vein compression syndrome

Compression of the left common iliac vein by the right iliac artery.

Medical specialty
Cardiology
Subspecialty
Cardiology / Vascular medicine
Sex & age distribution
Male: affected; Female: affected, 2–3 times more common; Children: rare, young adults
Gene(s) involved
None recorded

Etiology & mechanism

Chronic vein compression causes thrombosis.

Gene(s) involved (0)

No gene recorded.

Symptoms & signs (5)

left iliofemoral deep vein thrombosisleft leg swellingleg painvaricose veinsvenous insufficiency
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.