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X Rays of Metabolic Bone Diseases PowerPoint Presentation

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Description : Check out this medical titled "X RAYS OF METABOLIC BONE DISEASES".

This medical discusses how x-rays are commonly used to diagnose and monitor metabolic bone diseases such as osteoporosis, osteomalacia, and Pagets disease. However, X-rays alone may not provide enough information to make a definitive diagnosis, and other imaging techniques such as bone density scans, MRI, or CT scans may be necessary.

Tags : x-rays, metabolic bone diseases, osteoporosis, osteomalacia, Pagets disease, endocrinology

Published on : Apr 21, 2023 | Views : 1319 | Downloads : 1

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X RAYS OF METABOLIC BONE DISEASES
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CONTENTS XRAY OF METABOLIC DISEASE OF BONE SUMMARY
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XRAY OF METABOLIC DISEASE OF BONE
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INTRODUCTION Metabolic bone diseases are a heterogeneous group of disorders characterized by abnormalities in calcium metabolism and/or bone cell physiology. They lead to an altered serum calcium concentration and/or skeletal failure. The most common type of metabolic bone disease in developed countries is osteoporosis. Because osteoporosis is essentially a disease of the elderly, the prevalence of this condition is increasing as the average age of people in developed countries rises. Osteoporotic fractures may lead to loss of independence in the elderly and is imposing an ever-increasing social and economic burden on society https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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PAGETS DISEASE Paget’s disease of bone is a localized disorder of bone remodelling that results in a disorganized structure of woven and lamellar bone. This reveals generalized expansion and deformity of affected long bones, with a characteristic lytic leading edge (‘blade of grass’ appearance). There may also be areas of sclerotic bone at sites of osteoblastic reaction. When Paget’s disease affects the skull, characteristic widening of the skull vault may be seen, or broad scalloped areas of lysis (osteoporosis circumscripta). https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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Radiograph demonstrating Paget’s disease of bone. There is thickening of the skull vault and regions of lucency and sclerosis (arrows). https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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HYPERPARATHYROIDISM This commonly shows a diffuse reduction in bone density. Radiological evidence of osteitis fibrosa cystica is present in less than 5% of patients at diagnosis. It consists of subperiosteal bone resorption (best seen along the radial aspect of middle phalanges), erosions of the tufts of the terminal phalanges, mottling of the skull vault (‘salt-and-pepper appearance’), cystic lesions and loss of the lamina dura. There may also be radiological evidence of nephrocalcinosis. https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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HYPERCALCAEMIA OF MALIGNANCY Hypercalcaemia of malignancy is usually an indicator of advanced disease with secondary skeletal deposits and is rarely the first manifestation. Plain radiography: may reveal an osteolytic bone lesion or evidence of a primary malignancy such as lung neoplasm https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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HYPOCALCAEMIA Hypocalcaemia is a less common clinical problem than hypercalcaemia and has fewer causes. Like hypercalcaemia, its presentation varies from an asymptomatic biochemical abnormality to a life-threatening condition. Plain radiography. Changes of renal osteodystrophy or osteomalacia/rickets are likely if chronic renal failure or vitamin D deficiency is severe enough to cause hypocalcaemia. In childhood hypoparathyroidism, radiographs may reveal skeletal abnormalities characteristic of pseudohypoparathyroidism. https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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OSTEOPENIA https://www.blackwellpublishing.com/content/BPL_Images/Content_store/Sample_chapter/9780632051625/AxfordChap5.pdf
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SUMMARY Radiograph is an important modality for the diagnosis of bone infections like Tuberculosis, osteomyelitis etc and metabolic diseases like hypocalcemia, pagets disease. Though it cannot be said as the best modality compared to CT Scan and MRI but it is the first line of investigation as such.
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………thank you