DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Mouth ulcers. Aphthous ulcers on the inside of a 17 year old boy's cheek. These ulcers were caused by the patient biting his cheek. Minor ulcers can be left to heal on their own, or treated with painkilling or steroid lotions.
Model release available. Property release not required.