Ulceration is a common presenting sign of a wide spectrum of diseases of the oral cavity involving many etiologic factors, such as trauma, infection, neoplasms, medication, and immune related disorders, ranging from self-limited lesions to life-threatening diseases. In most cases, a proper diagnosis can be established based on medical history and clinical features only. Early diagnosis is important as oral ulcerations might be a manifestation of a systemic disease or sometimes even due to a malignant process.
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