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Dental findings in a family with hyperparathyroidism–jaw tumor syndrome and a novel HRPT2 gene mutation

Authors :
Anna A. Talacko
Bryan G. Radden
Catharina Larsson
Andrea Villablanca
Michael J. Aldred
Andrei Alimov
Vince Murdolo
Alan E. Mills
Ravi Savarirayan
Source :
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology. 101:212-218
Publication Year :
2006
Publisher :
Elsevier BV, 2006.

Abstract

Hyperparathyroidism-jaw tumor syndrome (HPT-JT) is an important diagnosis because of the possible involvement of other family members and risk of malignant disease. We report clinical and genetic studies in a previously undocumented Australian family with HPT-JT. The proband and his sister presented with bilateral or recurrent mandibular radiolucencies diagnosed histopathologically as cemento-ossifying fibromas. Mutation screening of the recently identified disease gene HRPT2 was performed by direct sequencing in 3 affected members. This revealed a novel mutation in exon 1 of HRPT2 (nt 20AGGACG --> GGGAG), which is predicted to inactivate the parafibromin protein through protein truncation and premature termination of translation. The terminology used for the jaw lesions in this syndrome warrants review to become more consistent. Cemento-ossifying fibroma is the preferred term to better reflect the pathologies found in most individuals and families,and to emphasize the significance of the jaw lesions in the diagnosis of the syndrome.

Details

ISSN :
10792104
Volume :
101
Database :
OpenAIRE
Journal :
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
Accession number :
edsair.doi.dedup.....38c4b7c54dd2411459add9a9be8b7c8e
Full Text :
https://doi.org/10.1016/j.tripleo.2005.06.011