A 28-year-old male presented with an asymptomatic blackish-brown pigmentation on the dorsal surface of the tongue of few months duration. The patient is smoker and has used to get large doses of oral antibiotics for dental problem.  The pigmentation can’t be rubbed off with tooth brush. The patient was instructed to avoid smoking , stop the current antibiotics, together with H2O2 mouth wash.

The case is presented by Dr. Ayman Abdelmaksoud, MD (Egypt).