The lumen is the space within the blood vessel (or within any tubular structure).
Shunt
Shunt
EXUDATE
tunica intima
Tunica Intima
Phlebitis is the medical term meaning inflammation of a blood vessel. (Thrombophlebitis is the medical term meaning inflammation of a blood vessel with a clot.)
Angiotripsy is the medical term meaning crushing of a vessel. It's a procedure used to stop hemorrhage.
angiographic
Angionecrosis
angioplasty
Avascular is the medical term meaning without blood vessels.
telangiectasia