Minor Aphthous Ulcer (Lip)
This photo shows a minor aphthous ulcer (canker sore) on the inside of the lip. The ulcer depicted is larger than a typical minor aphthous ulcer.
DR P. MARAZZI/SCIENCE PHOTO LIBRARY
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This photo shows a minor aphthous ulcer (canker sore) on the inside of the lip. The ulcer depicted is larger than a typical minor aphthous ulcer.
DR P. MARAZZI/SCIENCE PHOTO LIBRARY