Basic pathologic changes 3 stages Degeneration Exudation fibrinoid necrosis, inflammtory infiltrates Regeneration rheumatic granuloma (rheumatic body, Aschoff body) Sclerosis fibrosis, scarringBasic pathologic changes 3 stages ◼ Degeneration & Exudation fibrinoid necrosis, inflammtory infiltrates ◼ Regeneration rheumatic granuloma (rheumatic body, Aschoff body) ◼ Sclerosis fibrosis, scarring