The Laugier-Hunziker syndrome.

We describe a 46-year-old Hispanic woman who was incidentally found to have hyperpigmentation of the oral mucosa and nails during a routine full body skin examination. The patient reported having these changes for years with no symptoms. A diagnosis of the Laugier-Hunziker syndrome (LHS) was made. LHS is an acquired, benign condition characterized by pigmentary skin changes involving the oral mucosa and is often associated with longitudinal melanonychia.