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Am J Med. 2018 Nov;131(11):1298-1303. doi: 10.1016/j.amjmed.2018.04.028. Epub 2018 May 10.

Paget's Disease of Bone: Diagnosis and Treatment.

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Assistant Professor of Medicine, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Stony Brook University School of Medicine, Stony Brook, NY. Electronic address:


Paget's disease of bone is a common bone disorder characterized by disorganized bone remodeling. The most likely etiology is a slow paramyxoviral infection in genetically susceptible individuals; however, the exact cause is unknown. Enhanced bone resorption due to an increased activity of osteoclasts recruits numerous osteoblasts to resorption sites, with large quantities of new bone matrix produced as a result. The accelerated bone resorption and formation are not as closely coupled as in a healthy bone; a disorganized bone tissue is formed. Many patients are asymptomatic; rising serum alkaline phosphatase or incidental finding of characteristic radiographic lesions are often the only diagnostic clues. Common clinical manifestations include bone pain, bowing of long bones, enlarged skull, and hearing loss. An elevated serum alkaline phosphatase level correlates with the disease activity. The diagnosis is confirmed by characteristic radiographic findings and by nuclear scintigraphy of the bone (the most sensitive test). Bisphosphonates, such as zoledronic acid, pamidronate, alendronate, and risedronate, are the mainstay of treatment. Patients who do not tolerate bisphosphonates can be treated with calcitonin.


Bisphosphonates; Osteitis deformans; Osteoclasts; Paget's disease of bone

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