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Prurigo nodularis - Wikipedia

Prurigo nodularis (PN), also known as nodular prurigo, is a skin disease characterised by pruritic nodules which usually appear on the arms or legs.Patients often present with multiple excoriated lesions caused by scratching. PN is also known as Hyde prurigo nodularis, Picker's nodules, atypical nodular form of neurodermatitis circumscripta, lichen corneus obtusus.