A 9 year old boy presented for evaluation of dark spots on the tongue. The family first noted these spots 5 months prior and reported that they remained stable. Can you make a diagnosis? Laugier Hunziker syndrome Congenital Melanotic Macule of the Tongue: A Five Year Follow up Dermatology Practical & Conceptual Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review