Clinical and histopathological differential diagnosis of Laugier‐Hunziker syndrome: An extremely rare case with unusual extensive oral hyperpigmentation

Abstract

Abstract Laugier‐Hunziker syndrome is a rare and benign disorder characterized by hyperpigmentation of the lips and buccal mucosae with associated longitudinal melanonychia of nails. Clinical correlation is needed to rule out other pigmentary disorders.

Keywords

• hyperpigmentation
• Laugier‐Hunziker syndrome
• mucocutaneous pigmentary disorder
• Peutz‐Jegher syndrome
• physiological melanoplakia