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European Journal of Dermatology

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Glossal pigmentation caused by the simultaneous uptake of iron and tea Volume 24, issue 4, July-August 2014

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Authors
Department of Dermatology,
Graduate School and Medicine,
University of the Ryukyus,
207 Uehara,
Nishihara,
Okinawa 903-0125,
Japan

Black hairy tongue, also known as lingua villosa nigra, is characterized by the appearance of a black-colored tongue with elongated keratinized filiform papillae, which can result from a variety of causes. We report a case of glossal pigmentation similar to black hairy tongue, caused by uptake of iron and tannins.A 15-year-old boy, who had been suffering from chronic granulomatous disease (CGD) for 8 years, presented with acute thoracic pain. The patient had been treated with sulfamethoxazole, trimethoprim [...]