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Correspondence
April 2001

Hypomelanosis Due to Block of Melanosomal Maturation in Amiodarone-Induced Hyperpigmentation

Arch Dermatol. 2001;137(4):513-514. doi:

Until now it has been assumed that hyperpigmentation during amiodarone treatment is exclusively due to dermal accumulation of a lipofuscin pigment.1,2 We describe here a patient with an absence of melanin in lesional sun-exposed epidermis and conclude that a block in melanosomal maturation is a major pathogenetic factor in photosensitivity and its distinctive discoloration.

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