Small scaly papules on the arm arranged in an annular and serpiginous distribution - elastosis perforans serpiginosa
Keywords: Annular arrangement, Coalesced erythematous papules, Erythematous papular eruption, Hyperkeratotic papules, Linear clusters, Mid-upper arm, Serpiginous pattern
Elastosis perforans serpiginosa (EPS) is a rare skin disorder in which abnormal elastic tissue fibre passes from the papillary dermis (inner layer of skin) to the epidermis (outer layer of skin), described as transepithelial elimination. It presents as a group of small reddish bumps.
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Source: Dr Ian Coulson
