Pleomorphic adenoma of the upper lip: a case report - Sanches, Guilherme Trafani; Pinho, Rodrigo Finger de Carvalho; Guimarães, Letícia Drumond de Abreu; Viveiros, Stephanie Kenig; Ortega, Karem Lopez; Nunes, Fábio Daumas; Magalhães, Marina Helena Cury Gallottini (Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 2018)