Lingual blue-black pigmentation on the tongue due to hydroxychloroquine
Keywords: Antimalarial, Blue-grey discolouration, Drug, Iatrogenic pigmentation, Lingual hyperpigmentation, Male, Oral mucosa, Quinine-induced pigmentation, Skin of colour
Drug-induced pigmentation is a change in skin pigmentation due to a change in melanin synthesis, or the accumulation of drugs or their metabolites in the skin.
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