Erythema dyschromicum perstans (ashy dermatosis)

Question 1

Slow onset of symmetric, slate grey-brown or grey-blue, oval macules and patches w/ erythematous rim = _____

Answer 1

• erythema dyschromicum perstans (ashy dermatosis)
• this is an acquired dermal macular hyperpigmentation disorder

Question 2

Which population is most frequently affected by erythema dyschromicum perstans (ashy dermatosis)?

Answer 2

• Latin Americans

Question 3

Which body parts are most frequenly involved in ashy dermatosis (EDP)?

Answer 3

• upper trunk, neck, proximal extremities

Question 4

Histology of ashy dermatosis (EDP):

Answer 4

numerous dermal melanophages +/- band like dermal lymphocytic infiltrate

Question 5

Treatment of ashy dermatosis (EDP):

Answer 5

• clofazamine
• others: dapsone, other LP treatments