A 45-year-old man referred to the Department of Periodontology, School of Dentistry, Isfahan University of Medical Sciences for routine dental and periodontal examinations. The patient's medical history was not significant. He was not a smoker and revealed no history of trauma or jaw surgery. On extraoral examination, he had a normal appearance. On intraoral examination, the patient had neither any pain nor swelling on the buccal and lingual aspects of the mandible. The radiographic images showed a well-defined unilocular radiolucency below the apices of the left lateral incisor and left canine teeth [].\nFurthermore, deep caries was observed in the left lateral incisor. The clinician suspected a periapical lesion of endodontic origin, but unfortunately, the vitality test of the tooth was not done. To rule out any possible existing pathology in anterior mandible, a diagnostic excision biopsy was planned. The surgical exploration revealed the lingual cortex had been destroyed. Further, the gross examination indicated a soft, relatively firm, brownish, gray mass with granular surface measuring approximately 20 mm × 10 mm × 20 mm. Moreover, histopathologic examination showed a normal salivary gland tissue, with many mucous acini and ducts, which was consistent with normal sublingual gland []. The sections from few other areas revealed inflammatory cells, muscle tissue, fat tissue, blood vessels, and nerve bundles []. Thus, based on the clinical, radiographical, and histopathological findings, the final diagnosis of SBC with ectopic salivary gland tissue was made. Clinical and radiographic controls were performed during 3 months of follow-up. No changes in the zone have been detected.
A 35-year-old male patient was similarly referred to Secunderabad Dental Imaging Centre (Hyderabad, India) to undergo routine panoramic radiography. The panorama revealed a cystic cavity on the left side below the second molar and mandibular canal, anterior to the angle of the mandible. () Medical and dental history was not contributory. There was no tenderness on bidigital palpation at the site of the lesion. For further analysis, CBCT restricted to the area of lesion was performed. The results revealed a complete radiolucent lesion that was regular, oval in shape, and well corticated.() The lesion was situated below the mandibular canal and measured 4.7×12.7×16.6 mm (height ×breadth×length).() The long axis of the lesion was situated horizontally in the left side. Cross-sections revealed a mandibular canal within the lesion without any pressure effect.() The patient was asymptomatic and there was no parasthesia or anaesthesia. The buccal wall and the inferior border were intact and there was no expansion (); however, the lingual wall was involved and the inferior border showed some pressure atrophy.\nA radiographic diagnosis of SBC was considered and the patient was recommended for regular follow-up.