Melanocytic Nevi (Moles) Fact Sheets Yale Medicine Orofacial Pathologies in Newly Diagnosed Adults with HIV: A Clinically Diagnostic Disease Severity Indicator in Resource Limited Settings Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review 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. Figure 1 from Oral Melanosis Semantic Scholar COM Jan. 2008 Diagnosis UW School of Dentistry