Coral urine under Wood’s lamp: do you know the cause?

Coral urine under Wood's lamp This patient presented with photosensitivity and a history of drug and alcohol use. When placed under a Wood's lamp, a urine sample demonstrated coral-colored fluorescence characteristic of which condition? a) Bacterial cystitis b) Porphyria cutanea tarda c) Antifreeze ingestion d) Multiple myeloma Not sure? Find out on Figure 1.

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