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The most frequent pathology of the lower lip is the neoplastic pathology and squamous cell carcinoma is the most clinically diagnosed. Wide excision is the correct surgical approach but it may cause severe morpho-functional and aesthetic damages. At the Plastic and Reconstructive Department of Policlinico Umberto I, " Sapienza" University of Rome, from 2005 to 2008 36 patients were treated, 19 only by surgical excision (Group I) and 17 by Johanson's technique (Group II). Follow-up was at 6 and 12 months to evaluate the morpho-functional outcome, the asymmetry and the healing. Moreover a questionnaire of 9 items was proposed to patients to evaluate functional and aesthetic results. Data showed that Johansons' s flap achieves the same results of the complete surgical excision but with better morpho-functional and aesthetic outcomes, greater satisfaction and same staying in hospital for patients.

The authors report a case of keratoacanthoma localized on the prolabium of the lower lip. They focus their attention on the difficulty of making a correct diagnosis and on the complexity of differential diagnosis with squamous cell carcinoma. After incisional biopsy of the lesion, treatment took the form of the complete excision of the neoplasm which is indispensable for a definitive diagnosis. The keratoacanthoma, although being an absolutely benign lesion, in fact requires complete exeresis in order to perform an histological examination of the entire neoplastic mass and thus definitively rule put the presence of squamous cell carcinoma. If correctly performed, the operation leaves very little scarring and satisfies the patient's esthetic and psychological expectations.