1.3 Papule




Focal, elevated, solid, circumscribed, palpable increase in substance of skin, sharp borders, surface usually smooth.


Colors: if caused by inflammation, red; if secondary to other deposits: red, brown or yellow.


Size: ≤ 1 cm.


May appear on entire body, for example maculo-papular exanthem.


Papules may coalesce to form plaque.


Papule may enlarge to form nodule.


May develop scales, crusts or erosion.


May be associated with: macule (maculo-papular), vesicle (papulo-vesicular) or pustule (papulo-pustular).

Comment / Explanation

Distinguish from nodule which is >0.5 cm.

Inflammatory papules often pruritic.

Typical Dermatoses

Multiple lesions: Drug exanthema, lichen planus, scabies, syphilis, acne.

Single lesions: Melanocytic nevus, tumors such as early nodular basal cell carcinoma.


Inflammatory infiltrate, deposits of lipids, proliferations of cells.

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