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Alicia Pérez-Bustillo, MD; Pedro Sánchez-Sambucety, MD; Óscar Suárez-Amor, MD; Manuel Angel Rodríiguez-Prieto, MD

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Pseudoporphyria is an infrequent blistering skin disease. The occurrence of this entity has been attributed to exposure to UV radiation, chronic kidney failure associated or not with dialysis, and use of multiple drugs including diuretics.¹ To our knowledge, torsemide has not been reported as a cause of pseudoporphyria; likewise, cross-reaction with furosemide had been suspected theoretically but not observed in any patient.

Report of a Case

A 64-year-old man with chronic renal failure attended our dermatology service in October 2006 for evaluation of blistering lesions on the backs of his hands and scalp since July 2006. He had had no changes in his treatment in the preceding year except for starting treatment with torsemide in May 2006, which had been replaced later with furosemide in September of the same year.

Clinical examination revealed blistering lesions, crusts, erosions, and hypopigmented scars on . . . [Full Text of this Article]

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