<prompt> Fibrinoid necrosis may be observed in all of the following except -Malignant hypeensionPolyaeritis nodosaDiabetic glomerulosclerosisAschoffs nodule  <response>: Ans. is c i.e., Diabetic glomerulosclerosis Fibrinoid necrosis o Fibrinoid necrosis is special form of necrosis usually seen in immune reactions involving blood vessels. o This pattern of necrosis typically occurs when complexes of antigen and antibodies are deposited in the walls of aeries. o Deposits of these immune complexes, together with fibrin that has leaked out of vessels, result in a bright pink and amorphous appearance in H E stains, called fibrinoid fibrin like by pathologists. o It is seen in : degImmune complex vasculitis 2Malignant hypeension. o Deposition of immune complexes, together with fibrin, results in bright pink and amorphous appearance in H E stain, called fibrinoid fibrin like. o Diseases with fibrinoid necrosis from internet Malignant hypeension SLE HBV PAN Henoch-scholein purpura Near peptic ulcer Acute rheumatic fever Aschoffs nodule SABE Malignancy Rheumatoid ahritis 