A case of Dowling-Degos disease involving the axillae and inframammary folds

A 58-year-old woman with past medical history significant for hidradenitis suppurativa (HS) and rosacea presented with a two-year history of numerous asymptomatic light brown to red lesions in the bilateral axillae and inframammary folds. She denied any worsening of her HS or any active or draining cysts. Physical examination revealed clusters of symmetrically distributed hyperkeratotic, red-brown papules with reticulated hyperpigmentation in the bilateral axillae and inframammary folds. Punch biopsy from the left axilla revealed a hyperkeratotic stratum corneum with elongated rete ridges and basilar hyperpigmentation.
Source: Journal of the American Academy of Dermatology - Category: Dermatology Source Type: research