<prompt> Commonest histological nding in benign hypertension isProliferating endarteritisNecrotising arterioiitisHyaline arteriosclerosisCystic medial necrosis  <response>: 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 arterioiosclerosisThere 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 arteriosclerosisIt 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. 