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Aphthous Ulcers

Image Description
aphthous ulcers Aphthous ulcers on the lower left labial mucosa. The ulcers are covered by a tan-yellow fibrin clot.
aphthous ulcers Aphthous ulcer on the left floor of the mouth.
aphthous ulcers Aphthous ulcer on the right soft palate. Note the tan fibrin clot on the surface of the ulcer and the surrounding zone of erythema.
aphthous ulcers Large aphthous ulcer of the upper labial mucosa. This ulcer is much larger and of longer duration than typical aphthae.
aphthous ulcers Aphthous ulcers. Note the white areas of scarring on the labial mucosa. Some clinicians would call this major aphthae.
aphthous ulcers Aphthous ulcer of right lower labial mucosa. Ulcer is covered by a tan fibrin clot.
aphthous ulcers Aphthous ulcer on parotid papilla, where Stensen's duct enters the oral cavity.
aphthous ulcers Several aphthous ulcers on lower right labial mucosa. There are also white areas of scarring closer to the midline. This patient has major aphthae.
aphthous ulcers Photomicrograph of aphthous ulcer. The surface is covered by stratified squamous epithelium, with an ulcer in the center. There are no diagnostic microscopic findings of apthous ulcers. The diagnosis is based on the clinical findings and history.
aphthous ulcers Aphthous ulcer. Note the ulcer on the nonkeratinized epithelium of the buccal mucosa.
aphthous ulcers Aphthous ulcer on the nonkeratinized epithelium of the buccal mucosa.