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Case Reports
. 2000 Apr;85(4):1449-54.
doi: 10.1210/jcem.85.4.6518.

A genotypic and histopathological study of a large Dutch kindred with hyperparathyroidism-jaw tumor syndrome

C J Haven  1 , F K Wong, E W van Dam, R van der Juijt, C van Asperen, J Jansen, C Rosenberg, M de Wit, J Roijers, J Hoppener, C J Lips, C Larsson, B T Teh, H Morreau
Affiliations
Case Reports

A genotypic and histopathological study of a large Dutch kindred with hyperparathyroidism-jaw tumor syndrome

C J Haven et al. J Clin Endocrinol Metab. 2000 Apr.

Abstract

Familial primary hyperparathyroidism is the main feature of 2 familial endocrine neoplasia syndromes: multiple endocrine neoplasia type 1 (MEN 1) and hyperparathyroidism-jaw tumor syndrome (HPT-JT). The latter is a recently described syndrome that has been associated with ossifying fibroma of the jaw and various types of renal lesions, including benign cysts, Wilms' tumor, and hamartomas. To further illustrate the natural history of this syndrome, we describe a large, previously unreported Dutch kindred in which 13 affected members presented with either parathyroid adenoma or carcinoma; in 5 affected individuals, cystic kidney disease was found. Additionally, pancreatic adenocarcinoma, renal cortical adenoma, papillary renal cell carcinoma, testicular mixed germ cell tumor with major seminoma component, and Hürthle cell thyroid adenoma were also identified. Linkage analysis of the family using MEN1-linked microsatellite markers and mutation analysis excluded the involvement of the MEN1 gene. Using markers from the HPT-JT region in 1q2531, cosegregation with the disease was found, with a maximum logarithm of odds score of 2.41 obtained for 6 markers using the most conservative calculation. Meiotic telomeric recombination between D1S413 and D1S477 was identified in 3 affected individuals, and when combined with previous reports, delineated the HPT-JT region to 14 centimorgan. Combined comparative genomic hybridization and loss of heterozygosity data revealed complex genetic abnormalities in the tumors, suggesting different possible genetic mechanisms for the disease. In conclusion, we report a family with hyperparathyroidism linked to chromosome 1q, and exhibiting several types of renal and endocrine tumors that have not been previously described.

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