adventitial cystic disease
Rare vascular condition characterized by mucin-filled cysts within the arterial adventitia causing external compression.
Full Definition
Adventitial cystic disease is an uncommon vascular disorder characterized by the development of mucin-containing cysts within the adventitial layer of arteries, most frequently affecting the popliteal artery. These cysts cause external compression of the arterial lumen, leading to stenosis or occlusion without intraluminal pathology. The condition typically affects young to middle-aged adults and may present with claudication symptoms. The exact etiology remains unclear, though developmental and traumatic theories have been proposed.
Usage
Usage note: Specify affected vessel when known, as popliteal artery is most common location.
In Context
- "MRI revealed adventitial cystic disease of the popliteal artery with characteristic high T2 signal intensity." — Radiology report
- "The young athlete's claudication was attributed to adventitial cystic disease rather than atherosclerotic disease." — Clinical case presentation