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Surgical (implantation) cyst of the mandible with ciliated respiratory epithelial lining: a case report.

Although respiratory metaplasia is occasionally observed in the squamous epithelial lining of mandibular odontogenic cysts, mandibular cystic lesions that feature linings composed exclusively of respiratory epithelium are extremely rare. This phenomenon may be attributed to entrapment of respiratory epithelium during surgical procedures. Two such cases were reported in which the cystic lesions occurred in the region of the chin after augmentation genioplasty after the use of nasal bone and cartilage.1,2 We present the case of a patient with a history of maxillary and mandibular osteotomies in whom a large cystic lesion of the left mandible developed. The cyst was lined exclusively with ciliated respiratory epithelium.