Oral ulcers

DDx

  • Aphthous ulcer (canker sore, ulcerative stomatitis)
  • Herpes simplex
  • Erythema multiforme
  • Drug reaction
  • Pemphigus
  • Bullous pemphigoid
  • Systemic lupus erythematosus (SLE)
  • Lichen planus
  • Coxsackievirus (herpangina, hand-foot-mouth disease)
  • Acute HIV infection
  • Parvovirus
  • Varicella zoster
  • Syphilis
  • Oral candidiasis
  • Behçet’s syndrome
  • Reactive arthritis
  • Inflammatory bowel disease
  • Squamous cell carcinoma
  • Necrotizing ulcerative gingivostomatitis (Vincent’s fusospirochetal disease)

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Last updated: December 1, 2014