Annular lichenoid dermatitis of youth (ALDY) is a lichenoid skin condition clinically characterized by one or more asymptomatic red-violaceous, round to oval macules and patches, which often develop into annular lesions with an inflammatory, non-scaling border and occasional central hypopigmentation. As lesions age, the peripheral erythema usually fades, resulting in complete or incomplete rings of hyperpigmentation surrounding whitish, non-atrophic, and non-indurated areas. The main dermatoscopic clue of ALDY includes the presence of brown-gray dots, observed in around two-thirds of cases. Despite its diagnostic value, the absence of these dots does not exclude ALDY, underscoring the need for comprehensive clinical and histological correlation.
Annular Lichenoid Dermatitis of Youth
Errichetti E.;Stinco G.
2026-01-01
Abstract
Annular lichenoid dermatitis of youth (ALDY) is a lichenoid skin condition clinically characterized by one or more asymptomatic red-violaceous, round to oval macules and patches, which often develop into annular lesions with an inflammatory, non-scaling border and occasional central hypopigmentation. As lesions age, the peripheral erythema usually fades, resulting in complete or incomplete rings of hyperpigmentation surrounding whitish, non-atrophic, and non-indurated areas. The main dermatoscopic clue of ALDY includes the presence of brown-gray dots, observed in around two-thirds of cases. Despite its diagnostic value, the absence of these dots does not exclude ALDY, underscoring the need for comprehensive clinical and histological correlation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
