Pigmented lesions of the oral mucosa and perioral tissues: a flow chart for the diagnosis and some recommendations for the management Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics COM Dec. 2011 Diagnosis UW School of Dentistry COM Jan. 2008 Diagnosis UW School of Dentistry 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