Differential diagnosis of an oral mucosal pigmented lesion: a case of essential melanosisDiane O'hana, Isabelle Barthélémy, Martine Baudet-Pommel, Nathalie Pham-Dang and Laurent DevoizeMed Buccale Chir Buccale, 23 3 (2017) 156-159DOI: https://doi.org/10.1051/mbcb/2017003