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Dermoscopic and Histopathological Correlation of Pityriasis Rosea
| Pityriasis Rosea | |
|---|---|
| Dermoscopic Features | Histopathological Features |
| Unspecific distribution of red dots | Non uniform dilatation of capillaries in the dermal papillae |
| Patchy scaling | Focal parakeratosis |
| Red background | Vascular dilatation |
| Brown dots | Spongiotic tissue reaction plus hemosiderin deposits from extravasated red blood cells and lymphocytic infiltrate |
