Cases reported "Hyperparathyroidism"

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11/206. Brown tumor of the spine revealing secondary hyperparathyroidism. Report of a case.

    Brown tumors are classic skeletal manifestations of hyperparathyroidism usually seen in severe forms with subperiosteal bone resorption. They are exceedingly rare at the spine. We report the case of a woman on hemodialysis who developed two brown tumors, including one at the spine, as the first manifestations of secondary hyperparathyroidism. There were no neurologic manifestations. The clinical and radiologic abnormalities resolved after parathyroidectomy preceded by a bisphosphonate infusion to prevent possible spinal lysis progression during the immediate postoperative period. In addition to the location of one of the brown tumors at the spine, unusual features in this case were the explosive onset of hyperparathyroidism and the absence of detectable subperiosteal resorption. We also suggest that bisphosphonate therapy given before parathyroidectomy may be useful in patients with spinal brown tumors.
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12/206. Ichthyosis revealing coeliac disease.

    We describe the case of a twenty-nine year-old woman presenting a lamellar desquamation on the abdomen, submammary folds and on the limbs. During recent years the patient suffered neither from bowel disorders, nor from dryness of the skin. Laboratory tests revealed high values of parathormone and a high level of antiendomysial antibodies. The total bone-mineral density was about 78% of normal levels. A duodenal mucous membrane specimen showed total atrophy of the villi. skin biopsy revealed an acquired ichthyosis mimicking an ichthyosis vulgaris. The patient underwent a gluten-free diet, supported by folic acid and vitamin d and six months later, after the regression of secondary hyperparathyroidism, a remarkable improvement of the cutaneous symptoms was obtained.
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13/206. Serial changes in bone mineral density and bone turnover after correction of secondary hyperparathyroidism in a patient with pseudohypoparathyroidism type Ib.

    pseudohypoparathyroidism (PHP) is a disorder characterized by hypocalcemia and secondary hyperparathyroidism caused by primarily renal resistance to the effects of parathyroid hormone (PTH). However, as an indication of normal PTH responsiveness in bone, some patients with PHP develop skeletal disease because of longstanding secondary hyperparathyroidism. A patient is described with hypocalcemia, hyperphosphatemia, marked secondary hyperparathyroidism, and an increased alkaline phosphatase level. Subsequent evaluation revealed a diagnosis of PHP type Ib. The patient had radiographic evidence of skeletal disease caused by secondary hyperparathyroidism. A urinary level of N-telopeptide cross-links of type I collagen (NTX) was elevated markedly. Bone mineral density (BMD) was in the normal range at all measured sites, with BMD at the spine being higher than at the femur and distal radius. Treatment was initiated with calcium and calcitriol. Seven months later, calcium and PTH levels had normalized. The level of urinary NTX fell by 83%. Spinal BMD improved by 15%, and BMD at the femoral neck improved by 11%. Radial BMD was unchanged. This case emphasizes the importance of evaluating patients with PHP for hyperparathyroid bone disease and shows that correction of secondary hyperparathyroidism in patients with PHP can result in a significant suppression of previously accelerated bone turnover and to substantial gains in BMD at sites containing a major percentage of cancellous bone. The case also implies that assessment of bone turnover with urinary NTX and measurement of BMD with dual-energy X-ray absorptiometry (DEXA) may be useful in following the response of the skeleton to therapy in these patients and suggests the need for more studies of both NTX and BMD in patients with PHP.
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keywords = bone
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14/206. Recognition and management of hungry bone syndrome--a case report.

    Hungry bone syndrome (HBS) following successful parathyroid surgery is a well described phenomenon. However, few studies have clearly addressed this syndrome or looked at the outcome of perioperative management. We report a case of HBS following successful parathyroid surgery. The perioperative management is discussed and literature pertaining to this interesting case is reviewed.
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ranking = 5
keywords = bone
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15/206. Primary neonatal hyperparathyroidism. Report of a case and review of the literature.

    The seventh case in the world literature of primary hyperparathyroidism in a neonate is reported. This is the fifth case in which an autopsy was performed. The clinical and anatomic findings in all seven cases are reviewed and compared. Neonates with primary hyperparathyroidism show diffuse hyperplasia of the parathyroid glands. The bones show disturbed osteogenesis, bone resorption, and widespread fibrosis of the marrow cavities. Bony cysts are not appreciated. Pathologic fractures are common. Marked hypercalciuria or hyperphosphaturia is usually not observed, perhaps because the immature renal tubules fail to respond to the influence of excess parathormone. Aminoaciduria and anemia are commonly observed. The prognosis is grave, and the etiology of this syndrome remains unexplained.
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16/206. Recognition and management of hungry bone syndrome--a case report.

    Hungry bone syndrome (HBS) following successful parathyroid surgery is a well described phenomenon. However, few studies have clearly addressed this syndrome or looked at the outcome of perioperative management. We report a case of HBS following successful parathyroid surgery. The perioperative management is discussed and literature pertaining to this interesting case is reviewed.
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ranking = 5
keywords = bone
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17/206. New insights on the pathogenesis of hypercalcemia in primary hyperparathyroidism.

    The pathogenesis of hypercalcemia in primary hyperparathyroidism is attributed to increased calcium release from bone, increased calcium reabsorption in renal distal tubules, and increased intestinal calcium absorption. However, it remains unclear which factor is the main process. We encountered a 56-year-old woman with myasthenia gravis, in whom hypercalcemia and elevated serum parathyroid hormone (PTH) level were observed. diagnosis of primary hyperparathyroidism was made. Treatment with methylprednisolone for myasthenia gravis was associated with a marked decrease in both biochemical markers of bone formation and resorption without any changes in endogenous cAMP and serum levels of calcium, PTH, and 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3]. These findings suggest that the possible pathogenesis of hypercalcemia in primary hyperparathyroidism may be attributed to the increased calcium reabsorption in the kidney and the increased intestinal calcium absorption as a result of stimulated production of 1,25-(OH)2D3 in the kidney. It thus follows that the renal tubular effect rather than the skeletal effect of the PTH excess may play a pivotal role in the development of hypercalcemia in primary hyperparathyroidism.
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18/206. Unusual presentation of primary hyperparathyroidism with osteoporosis, hypercalcemia, and normal parathyroid hormone level.

    We report the case of a woman with osteoporosis, chronic hypercalcemia, and normal levels of parathyroid hormone (PTH). Surgical exploration revealed hyperplasia of the parathyroid glands. hypercalcemia was corrected immediately by surgery, and this was followed by a dramatic improvement in bone mineral density. This case represents a rarely reported presentation of primary hyperparathyroidism with an atypical laboratory finding.
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ranking = 1
keywords = bone
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19/206. Primary hyperparathyroidism as a cause of multiple long bone fractures in a young Nigerian adult.

    Primary hyperparathyroidism is a recognized though relatively rare cause of multiple limbs fractures. We report a case in a young Nigerian adult. It is emphasize that primary hyperparathyroidism may be asymptomatic and therefore under-recognized in this environment because it is very uncommon.
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ranking = 4
keywords = bone
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20/206. osteosclerosis in primary hyperparathyroidism.

    osteosclerosis in adults with primary hyperparathyoidism is rare; the usual skeletal manifestation, when presented, is diffuse osteropenia. We describe a patient with generalized osteosclerosis in association with primary hyperparathyroidism. The findings are documented by conventional and fine-detail radiography, absorptiometric bone mineral analysis, quantitative microradiography and histologic examination of bone. The unique features are contrasted with the manifestations recorded in a recently studied group of 87 hyperparathyroid patients. The data presented here support a causal relationship in this patient between parathyroid hormone excess and the development of densely sclerotic bones.
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