Cartilaginous choristoma of the gingiva

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Cartilaginous choristomas of the gingiva are rare lesions. These lesions can derive from metaplastic osseous or chondroid formation, stimulation of cartilaginous embryonic rests, pluripotent cells, development of a mixed tumor with predominance of osseous tissue or cartilage, other neoplasms and teratomas with preponderance of bone and cartilage. A 60-year-old male was referred for diagnostic evaluation of a nodule involving the adherent gingiva of the maxillary premolar region, present for about 6 months and extending into the vestibular mucosa. Microscopically, the overlying mucosa was acanthotic; the submucosal mass was composed by mature cartilage. Neither nuclear atypia nor mitoses were evident. In some areas, the chondrocytes appeared to be surrounded by dense connective tissue (pseudo-capsule). The diagnosis was cartilaginous choristoma. There was no evidence of recurrence at 2 years follow-up. The treatment of oral choristomas consists of a simple excision. © 2005 Elsevier Ltd. All rights reserved.




Perrotti, V., Fioroni, M., Rubini, C., & Piattelli, A. (2005). Cartilaginous choristoma of the gingiva. Oral Oncology Extra, 41(9), 216–218.

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