2.2 Crust

Sinonimai

Crust

Definition/Description

Surface deposits of dried secretions (serum, pus or blood), usually mixed with epithelial and sometimes bacterial debris
Color: yellow (serum, pus), brown-black (blood)
Size: several mm to cm

Localization

May appear anywhere on body, usually localized.

Eiga

May develop into erosion or ulcer
Associated with vesicle or pustule
When crusts become detached, the base may be dry or red and moist

Typical Dermatoses

All diagnoses associated with exudation of fluids.

Pathophysiology

Exudation of serum; leakage of blood following trauma, lesion type following papule, pustule, plaque, vesicle and bulla

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