Case for diagnosis. Erythromelanosis follicularis faciei et colli.

Erythromelanosis follicularis faciei et colli is a rare disease of unknown etiology characterized by symmetric erythematous brownish hyperpigmentation on the frontal, malar and temporal areas associated with involvement of the pilary follicle. It is common to present pilar keratosis on the shoulders and neck. The three main clinical characteristics are: erythema (with or without telangiectasias), discrete follicular papules and brownish hyperpigmentation.