Prurigo nodularis

Prurigo nodularis
Pruritic papules and scattered nodules can be seen (a) on the legs, (b) on the arms and (c) on the trunk of this patient with prurigo nodularis.
Scattered excoriated nodules across the extensor surface of both hands
Specialty	Dermatology

Prurigo nodularis (PN), also known as nodular prurigo, is a skin disorder characterized by pruritic (itchy), nodular lesions, which commonly appear on the trunk, arms and legs.^[1] Patients often present with multiple excoriated nodules caused by chronic scratching. Although the exact cause of PN is unknown, PN is associated with other dermatologic conditions such as untreated or severe atopic dermatitis and systemic causes of pruritus including liver disease and end stage kidney disease.^[2] The goal of treatment in PN is to decrease itching. PN is also known as Hyde prurigo nodularis, or Picker's nodules.^[3]