Pigmented lesions of the oral mucosa and perioral tissues: a flow chart for the diagnosis and some recommendations for the management ScienceDirect Perioral Pigmentation One Area. Many Diagnoses. Dark skin around the mouth is one of the most common concerns I see in my OPD but it is never just tanning. Universal acquired melanosis (Carbon baby) Indian Journal of Dermatology, Venereology and Leprology Black and Brown: Non neoplastic Pigmentation of the Oral Mucosa Head and Neck Pathology Springer Nature Link Orofacial Pathologies in Newly Diagnosed Adults with HIV: A Clinically Diagnostic Disease Severity Indicator in Resource Limited Settings COM Jan. 2008 Diagnosis UW School of Dentistry