Commonest histological nding in benign hypertension is
Characteristic vascular pathology of benign hypertension is hyaline arteriosclerosis.
Vascular pathology in Hypertension Hypertension is associated with two forms of small blood vessels disease -
1. Hyaline arterioiosclerosis

There is homogenous, pink, hyaline thickening of arteriolar wall.
The lumen becomes narrow, o It is characterisc of benign hypertension,
It may also occur in diabetes and aging.

2. Hyperplastic arteriosclerosis

It is characteristic of malignant hypertension.
There is concentrenc, laminated thickening of arteriolar wall → onion skinning,
There is mucinous intimal thickening and fibrous intimal thickening.
There may be accompanied fibrinoid deposits with necrosis of the vessels w ral! → fibrinoid necrosis.
Proliferating endarteritis
Necrotising arterioiitis
Hyaline arteriosclerosis
Cystic medial necrosis