Lichen planus (LP) is a chronic mucocutaneous disorder in which auto-cytotoxic T lymphocytes trigger apoptosis of epithelial cells leading to chronic inflammation. Oral Lichen Planus (OLP) is a disease which has a slight malignant potency. The diagnosis of OLP can be made from the clinical features if they are sufficiently characterized, but biopsy is recommended to confirm the diagnosis and to exclude dysplasia and malignancy. This is a case report of erosive lichen planus in a female patient, aged 45 years.

Keratocysytic Odontogenic tumor is a lesion occurring in the oral cavity that has a high recurrence rate. This lesion has an ability to mimic other lesions affecting the jaw. The tumor has a varied clinical and radiographic presentation. This article presents a case report of a 45 year old male patient presenting with an asymptomatic swelling on the right lower jaw associated with an impacted tooth and depicts an unusual radiographic picture.