Ashy dermatosis in Adult
EDP presents as asymptomatic or mildly pruritic gray-blue or gray-brown macules of various sizes on the neck, trunk, and proximal extremities. Lesions are generally distributed symmetrically and there can occasionally be an erythematous or raised border. EDP is slowly progressive. The condition does not typically regress in adults, but may spontaneously resolve in children.
EDP has been associated with certain exposures, including ammonium nitrate, oral radiographic contrast media, cobalt, and parasitic whipworm infection.
EDP occurs with equal frequency in men and women and most commonly occurs when patients are young adults.
L81.4 – Other melanin hyperpigmentation
58942006 – Erythema dyschromicum perstans
- Pruritic lichen planus (including the variant lichen planus pigmentosus)
- Lichenoid drug eruption – usually more erythematous
- Riehl melanosis
- Acquired dermal melanocytosis
- Post-inflammatory hyperpigmentation
- Drug-induced pigmentation
- Addison disease
- Fixed drug eruption – multiple
- Macular amyloidosis
- Macular urticaria pigmentosa
- Late pinta
- Confluent and reticulated papillomatosis