A 69-year-old male with a history of diabetes mellitus presented with lesions on the right side of the lower lip. Lower lip shows the presence of a solitary intact vesicle, roughly 1 cm by 1 cm along with an erosion corresponding to a burst vesicle with irregular margins. Furthermore, angular cheilitis was noted [].\nDifferential diagnosis: Recurrent herpetic labialis. Nutritional deficiency angular cheilitis.
A 50-year-old female with history of diabetes mellitus and hypertension presented with ulcers on her lower lip. Lower lip appears to be swollen. A necrotic area on the lower lip extending from the right lateral incisor to the left commissure. Whitish pseudomembrane along with neighboring erosive areas close to the midline along with bloody encrustations on the left side closer to the commissure [].\nDifferential diagnosis: Traumatic ulcer with bloody encrustations (history of intubation).