PMC3645461_01
A) emerging cutaneous sinus tract on the neck of case no. 1 patient. B) Panoramic radiograph demonstrating abscessed third molar.
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Examination revealed a large palpable mass inferior to the left mandibular ramus (Figure 1A). A panoramic radiograph was exposed and revealed a periapical radiolucency (Figure 1B).
PMC3645461_02
A) Cutaneous sinus tract on the chin of case no. 2 patient. B) Periapical radiograph demonstrating failing root canal therapy of mandibular anterior tooth.
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Clinical examination revealed a draining extra-oral cutaneous lesion with slight swelling slightly inferior to the chin (Figure 2A). A periapical radiograph was exposed and revealed an incomplete endodontic filling and compromised periodontal structures and a periapical radiolucency (Figure 2B).
PMC3645461_03
A) Emerging sinus tract on the cheek of case no. 3 patient. B) Portion of panoramic radiograph demonstrating multiple periapical radiolucencies and carious dental lesions.
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Clinical examination revealed an area of firm swelling approximately 1 cm in diameter slightly superior to the middle of the left ramus of the mandible (Figure 3A). A panoramic radiograph was exposed and demonstrated severe carious lesions of the maxillary left canine and first bicuspid and second molar as well as root tips with periapical radiolucencies of the maxillary left first molar and the left mandibular bicuspids (Figure 3B).