8/2/2013

Tattoo ink can hide a malignant melanoma, and laser tattoo removal might encourage precancerous lesions to become malignant, doctors at Laserklinik Karlsruhe in Karlsruhe, Germany, say. The doctors report a case study of a man who refused to have a nevus excised before undergoing laser-assisted tattoo removal, only to find later that the lesion was malignant. "[T]attoos should never be placed on pigmented lesions; if they are, the tattoos should not be treated by laser," the authors write.

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