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Purpuric : Petechiae

Tiny 1-2 mm, initially purpuric, non-blanchable macules resulting from tiny hemorrhages.

Purpura can be differentiated from pigmented lesions by color. Pigmented lesions are usually brown in color in comparison to the violaceous color of purpuric lesions.

Petechiae, ecchymoses, and palpable purpura do not blanch because blood has leaked outside the vessels into the surrounding skin.

Petechiae on the plantar foot in subacute bacterial endocarditis

Petechiae on the plantar foot in subacute bacterial endocarditis

Widespread petechiae in Rocky Mountain spotted fever

Widespread petechiae in Rocky Mountain spotted fever

Petechiae in strongyloidiasis

Petechiae in strongyloidiasis

Petechiae in viral exanthem

Petechiae in viral exanthem