Zinc-responsive necrolytic acral erythema

Definition

A rare skin disease characterized initially by erythematous patches with superficial necrosis, at later stages by hyperkeratotic plaques with a rim of dusky erythema, of exclusively acral distribution with a predilection for the lower extremities, and universal association with hepatitis C virus infection. Patients typically experience pruritus or pain. Serum zinc levels may or may not be decreased, although oral zinc supplementation often improves the condition.