Ulcer of mouth (disorder)

• Mouth ulcer
• Mouth ulceration
• Oral ulcer
• Ulcer of mouth
• Ulceration of oral mucosa

• Disease (disorder) and Role group (attribute) some (
      Associated morphology (attribute) some Ulcer (morphologic abnormality) and
      Finding site (attribute) some Mouth region structure (body structure))

• Ulcer (disorder)
• Oral lesion (finding)
• Disorder of mouth (disorder)