A Rare Case of Idiopathic Atrophoderma of Pasini and Pierini

Idiopathic atrophoderma of Pasini and Pierini (IAPP) is a rare pigmented atrophic cutaneous disease. Here, we report case 27-year-old woman who presented with asymptomatic brown patches on her upper back for one year. There was no prior history swelling or induration the lesions. Physical examination showed clear boundaries, consistent snow footprints cliff-drop-like changes edge. Dermoscopy revealed numerous bare linear, branched blood vessels perifollicular brownish areas, which differs from only previously reported IAPP. Biopsy perivascular mononuclear cells infiltrating dermis reduced elastic fibers in middle dermis. Typical clinical findings “footprints snow” appearance dermoscopy could combine definite diagnosis aiding differentiating morphea presenting whitish structureless hairless areas. This might stimulate clinicians to diagnose such disease patients similar lesions avoid unnecessary treatment.