Traumatic oral ulcer - Oral Mucosal Lesion
The lesion appears as a round, ovoid or irregularly shaped removable, creamy-white fibrinopurulent membrane surrounded by a variable amount of erythema. For more chronic lesions, a white border of hyperkeratosis, the margins of which blend with the surrounding mucosa, is adjacent to the area of ulceration.
K12.0 – Recurrent oral aphthae
50882004 – Traumatic ulcer of oral mucosa
Differential Diagnosis & Pitfalls
- Aphthous ulcer – This condition only affects non-keratinized mucosa and generally has a history of recurrence. Aphthae cause pain that seems to be out of proportion to the size of the lesion.
- Squamous cell carcinoma – Once any presumed contributing traumatic factors have been eliminated, an ulcer (especially on the lateral border of tongue) that persists for more than 2 weeks requires biopsy.
- Traumatic eosinophilic granuloma – This ulcer may lack a preceding history of trauma, is slow to heal (sometimes lasting weeks to months), and may resolve with incisional biopsy.
- Primary syphilis (chancre) – This can present with a painless intraoral ulcer affecting the lip, tongue, or tonsillar area. Regional lymphadenopathy is normally present.
- Tuberculosis – Oral lesions of tuberculosis are rare but may present as a chronic, painless ulcer.
- Histoplasmosis – Deep fungal infections, such as histoplasmosis, are an uncommon cause of oral ulceration.