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.
Ide
Fumio
F
Department of Pathology, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan. ide-f@tsurumi-u.ac.jp
Saito
Ichiro
I
Horie
Norio
N
Shimoyama
Tetsuo
T
D000328:Adult; D002356:Cartilage; D002828:Choristoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008336:Mandibular Diseases / Q000473:pathology* / Q000601:surgery; D008679:Metaplasia; D009807:Odontogenic Cysts / Q000473:pathology* / Q000601:surgery