Orthokeratinized Odontogenic Cyst of the Mandible with Heterotopic Cartilage
Cartilaginous metaplasia is a rare but well-documented phenomenon occurring in the wall of odontogenic keratocyst. The mural cartilage not associated with odontogenic keratocyst has been reported only once in a maxillary teratoid cyst of congenital origin to our knowledge. A case presented is a 38-year-old man with intraosseous keratinizing epidermoid cyst in the mandible, the wall of which contained a nodule of mature hyaline cartilage. The present lesion likely represents a previously undescribed, histologic hybrid consisting of orthokeratinized odontogenic cyst and cartilaginous heterotopia.
KeywordsCartilage Heterotopia Mandible Orthokeratinized odontogenic cyst
- 1.Shear M, Speight P. Cysts of the oral and maxillofacial regions. 4th ed. Oxford: Blackwell Munksgaard; 2007. p. 108–18.Google Scholar
- 2.Ide F, Horie N, Shimoyama T, Saito I, Tanaka A, Kusama K. Infrequent clinicopathologic features of keratocystic odontogenic tumor: a 29-year multi-institutional retrospective review. Oral Surg. 2009 (in press).Google Scholar
- 14.Francis TC, Archard HO. Nasopalatine duct cyst with epidermoid features: report of case. J Oral Surg. 1967;25:265–8.Google Scholar