2)AV area-AS Organic: RHD Character: Harsh. crescendo-decrescendo radiate->neck, Thrill. s,y Relative: Arteriosclerosis. Dilation of aorta HP s2• 2) AV area—AS – Organic: RHD Character: Harsh, crescendo-decrescendo, radiate→neck, Thrill, S2 – Relative: Arteriosclerosis, Dilation of aorta, HP