A lymph node is an encapsulated mass of lymph tissue.
A hemangioma is the medical term meaning tumor of blood vessels.
Narrowing of the blood vessels is called atherosclerosis.
vascular
Fluorescein angiography is the medical term meaning radiographic study of the blood vessels of the retina. This process can examine retinal vessels in the case of diabetes.
Avascular is the medical term meaning without blood vessels.
Blood vessels
Vasculitis
Nephrovascular means pertaining to kidney vessels.
Vasculitis is a medical term meaning relating to inflammation of vessels.
Neoplasm is the medical term meaning tumor; a neoplasm can be malignant (cancerous) or benign.
The smallest blood vessels are the capillaries.
Angioblast