Cutaneous sinus tract of dental origin

Abstract

A 47‐year‐old woman presented with a nodular lesion on her face that had been discharging pus intermittently for 7 months. She could not recall any previous trauma to the site. Dermatologic examination revealed a nontender, erythematous, nodular, draining lesion on the patient's chin ( Fig. 1 ). Dental examination showed poor oral hygiene and severe chronic periodontitis, but no acute infection. Radiography demonstrated diffuse periapical radiolucency associated with the right central mandibular incisor ( Fig. 2 ). The patient was diagnosed with chronic apical periodontitis. Because it was too late for her oral condition to be corrected with endodontic treatment, the tooth was extracted and the scar on her chin was revised later. A cutaneous draining sinus of dental origin presenting as an erythematous nodule on the patient's chin image A periapical radiograph demonstrating periapical radiolucency surrounding the lower right central incisor (tooth no. 25) image