Portal de Periódicos da CAPES

A Case of an Ameloblastic Fibro-Odontoma Arising from a Calcifying Odontogenic Cyst.

2001; Tokyo Dental College; Volume: 42; Issue: 1 Linguagem: Inglês

10.2209/tdcpublication.42.51

0040-8891

Kenichi Matsuzaka, Takashi Inoue, MASANORI NASHIMOTO, Kyoto Takemoto, Hiroki Ishikawa, Mitsuru Asaka, Masaki Shimono, Maki Fujikawa, Hiroyasu Noma,

dental development and anomalies

This case report describes an ameloblastic fibro-odontoma arising from a calcifying odontogenic cyst (COC) in the mandible of a twenty-three-year old male. The patient was referred to the Department of Oral Surgery, Tokyo Dental College, on March 30th, 2000, complaining of a painful swelling, which had appeared three weeks earlier on his left mandibular molar region. In a pathological view, the lesion was a round cyst the size of a chicken-egg, dark red in color, and surrounded by a thick membrane. The cyst had an epithelium of varying thickness which included many ghost cells and an enamel-like structure on the inside, and a thick wall of connective tissue with an ameloblastic fibro-odontoma on the outside. Enamel organ-like epithelial islands were structured radially in the form of strands with immature dentin. Cytokeratin 19 was strongly immunoreactive in the epithelium of the lesion; osteopontin and osteocalcin reacted in the mesenchymal cells and weakly in the epithelial element of this tumor.