“…Other clinical features may include palmoplantar pits, longitudinal erythronychia, distal V‐shaped notching of the nail plates, and papular lesions in the oral mucosa . In addition to the classical presentation, several unusual clinical variants, such as acral hemorrhagic, vesiculobullous, flexural, acneiform comedonal, hypopigmented, and mosaic types, have been described . Of note, the mosaic variant may manifest as unilateral streaks of keratotic papules (type 1) or with increased severity of similar lesions in a streaky pattern over a background of generalized disease (type 2) .…”