A first report of porphyria cutanea tarda successfully treated with glycyrrhizin.

Porphyria cutanea tarda (PCT) is a condition that affects liver and skin by reduction of hepatic uroporphyrinogen decarboxylase activity. It is characterized by blistering lesions, erosions and crusts on sun-exposed areas. We report a 51-year-old male presenting with recurrent episodes of bullae, erosions, and crust on his neck and dorsum of the hands for 3 months. Aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transferase, alkaline phosphatase, lactate dehydrogenase levels, as well as total plasma porphyrin and urinary uroporphyrin levels were elevated. Based on the clinical manifestations, the history and laboratory findings, a diagnosis of PCT was made. The cutaneous and biochemical abnormalities of the patient improved with therapy of glycyrrhizin.