intimal
Relating to the intima, the innermost layer of an arterial wall consisting of endothelial cells and subendothelial connective tissue.
Full Definition
An anatomical and pathological descriptor referring to the tunica intima, the smooth inner lining of blood vessels. The intima consists of a single layer of endothelial cells overlying a thin basement membrane and subendothelial matrix. This layer is crucial for maintaining vascular homeostasis, regulating thrombosis and thrombolysis, and controlling vascular tone. Intimal pathology includes atherosclerotic plaque formation, intimal hyperplasia (smooth muscle proliferation), and intimal dissection or flap creation during vascular procedures. Understanding intimal anatomy and pathophysiology is essential for interpreting imaging studies and planning interventional strategies in vascular disease management.
Usage
Usage note: Adjective form relating to vascular anatomy. Common in phrases like 'intimal hyperplasia' and 'intimal flap'.
In Context
- "The angiogram revealed an intimal flap extending from the carotid bifurcation." — Imaging interpretation
- "Aggressive balloon inflation caused intimal injury requiring stent placement." — Procedure complication note