Familial isolated hyperparathyroidism due to multiple adenomas associated with ossifying jaw fibroma and multiple uterine adenomyomatous polyps

Second Department of Internal Medicine, Kyushu University, Fukuoka, Fukuoka City, Japan.

We describe three siblings with hyperparathyroidism due to multiple parathyroid adenomas without evidence of other endocrinological abnormalities. A 22-year-old woman had two parathyroid adenomas complicated by multiple ossifying jaw fibromas. Her sister, aged 29, also suffered from primary hyperparathyroidism associated with two parathyroid adenomas one of which was also suspected to be a carcinoma. These two female patients had unusual multiple small uterine polyps, which were diagnosed as adenomyomatous polyps. Their brother, aged 17, had two parathyroid adenomas complicated by urolithiasis. These three patients are characterized by young adult-onset familial isolated hyperparathyroidism due to multiple adenomas with various complications including ossifying jaw fibroma and uterine adenomyomatous polyps. These clinical features are different from those of familial hyperparathyroidism associated with multiple endocrine neoplasia.

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