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Keratoacanthoma is a relatively common, low-grade cutaneous tumor that most commonly exhibits a self-limiting behavior. The lesions present as firm, sharply defined nodules with a central ulceration or prominent keratin plug. Pertinent physical findings are usually limited to the skin, with the majority of the lesions favoring the sun-exposed areas [1]. Histopathological characteristics highly resemble those of squamous cell carcinoma. Observation strategy is questionable and rarely practiced as a therapeutic means. Surgical excision of the entire lesion is a gold standard regimen [1,2].

Cutaneous Nodules Arranged in a Sporotrichoid Distribution Over the Lower Extremity