Aphthous ulcers are among the most common oral lesions in the general population ... The ulcers, which usually occur on the nonkeratinized oral mucosa, can cause considerable pain and may ...

The lesions of lichen planus can occur anywhere on the body but favor the flexor wrists, trunk, medial thighs, shins, dorsal hands, and lower back. The oral mucosa is frequently affected and these ...

A 20-year-old man presented with a 3-day history of erosions of the oral mucosa (Figure) and reddened conjunctivae. Three days before appearance of the first lesions he had started feeling unwell ...