Oral malignant melanoma: a rarity! BMJ Case Reports COM Dec. 2011 Diagnosis UW School of Dentistry Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 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 Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review