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To the Editor.—
The simultaneous occurrence of uncommon diseases in a single patient is always fascinating, especially when the diseases are of dermatologic interest.The following report depicts the association of porphyria cutanea tarda (PCT) with lentigo maligna. This is an association that has not been reported previously to my knowledge.
Report of a Case
A 56-year-old white man with a two-year history of vesicles and bullae on his forehead and dorsal hands was proved to have PCT by appropriate testing.Examination also revealed an asymptomatic 2-cm tan and brown, sharply marginated, irregularly bordered macule on his right cheek, in an area uninvolved with the vesicles.Biopsy bore out my clinical impression of lentigo maligna.The case above demonstrates the simultaneous occurrence of two unusual entities in one patient.
Greenwald G. Lentigo Maligna Associated With Porphyria Cutanea Tarda. Arch Dermatol. 1974;110(2):298. doi:10.1001/archderm.1974.01630080086037