Congenital Melanotic Macule of the Tongue: Report of Two Cases and Literature Review Head and Neck Pathology Springer Nature Link Figure 2 from Laugier Hunziker syndrome: a case of asymptomatic mucosal and acral hyperpigmentation Semantic Scholar A Rare Case of Oral Mucosal Pigmentation: Differential Diagnosis and Case Presentation JCDA PDF) Lingual melanotic macule the first case report in an adult patient