Diagnosis of oral pigmentations and malignant transformations ScienceDirect 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 A Black Spot on the Upper Gum for Many Years: Melanotic Macule Springer Nature Link Citalopram Induced Oral Melanotic Macules in a Female Patient and a Review of the Literature Cureus