<prompt> Hyperplastic arteriolitis with necrotizing arteriolitis is seen in?Wegners granulomatosisMalignant hypertensionBuergers diseaseBenign hypertension  <response>: Hyperplastic arteriolosclerosis is more typical of severe hypertension. Vessels exhibit onion skin .concentric, laminated thickening of arteriolar walls and luminal narrowing . The lamination consists of smooth muscle cells and thickened , re duplicated basement membrane . In malignant hypertension these changes are accompnied by fibrinoid deposits and vessels wall necrosis . 