A 55 year old male with a long history of tobacco smoking presents with diffuse dark pigmentation on the hard palate as seen in the image. What is the most likely diagnosis? A. Oral Pigmented Lesions of the Oral Mucosa Pocket Dentistry Nevus of Ota with Rare Palatal Involvement: A Case Report with Emphasis on Differential Diagnosis Sharma 2011 Case Reports in Dentistry Wiley Online Library Figure 1 from Oral melanotic macule a case report. Semantic Scholar