Blue-black nail pigmentation due to long-term antimalarial therapy
Keywords: Antimalarial drug, Bluish-brown discolouration, Fingernail, Hand, Iatrogenic pigmentation, Melanonychia, Proximal nail fold, Quinine-induced nail pigmentation
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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