Abstract
Keratoacanthoma (KA) is a self-limiting, low-grade malignancy, bearing marked histological resemblance to well-diff erentiated squamous cell carcinoma (SCC). Epidemiological data shows that almost 95% of cases of solitary lesions occur on sunexposed areas and approximately 8% of cases occur on the outer edge of the vermilion border of the lips. The present case report discusses a case of KA on vermillion border of the lower lip, due to its rare involvement of mucosal tissues with respect to its cutaneous counterpart and the histopathological evaluation, which plays the main crux in ruling out lesions mimicking malignant epithelial pathologies like SCC, aiding in proper course of treatment and prognosis.
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