Topic summary
Papules

Extracted from the Wikipedia article Papule.
Differential diagnosis
Papules with scale on the palms and soles may occur in secondary syphilis, psoriasis, eczema, tinea manuum, mycosis fungoides. In lichen planus papules may be itchy, flat-topped, polygonal, purplish with white streaks, and can be solitary, or occur in clusters or in a line.