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Knee hip elbow what occurs in tumefactive

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Unformatted text preview: what joints? Knee. Hip. Elbow. What occurs in tumefactive synovialpacked in a joint. May look like tumor at MR. Loose bodies are tightly chondromatosis? PVNS looks radiographically identical to Noncalcified synovial osteochondromatosis, yet much less common. Sudenck atrophy is also known as Reflex sympathetic dystrophy. Shoulder-hand syndrome. Sudeck atrophy radiographic findings Severe, patchy osteoporosis and soft tissue swelling. Typically affects hands or feet. Radiographic sign or more displacement of suprapetallar fat pad and anterior femoral fat pad. 10 mm for a knee effusion Signs of avascular necrosis? Joint effusion. Patchy or mottled density. Subchondral lucency. Collapse of articular surface. Joint fragmentation. Only one side of joint involved. Avascular necrosis of lunate? Kienbock malacia. Flattening and sclerosis of tarsal navicular thought to be due to avascular necrosis in children? Kohler Disease. Form of AVN that is smaller and more focal is known as? osteochondritis dissecans. Common sites of osteochondritis dessicans? of talus. Capitellum. Medial epicondyle of knee. Dome Avascular necrosis of apophyseal rings of vertebral bodies is called Scheuermann disease. Avascular necrosis of metatarsal heads is called? Freiberg infraction. Avascular necrosis of femoral head? Legg-Perthes disease. Avascular necrosis of tibial tubercle is? Osgood-Schlatter disease. Osteoporosis versus osteomalacia? bone quantity. Osteomalacia: Abnormally mineralized (normal quantity) bone. Osteoporosis: Decreased Normal metacarpal cortical thickening should be approximately ____________ the thickness of the metacarpal One fourth to one third. Distinguishes permeative processes from pseudopermeative processes? Permeative process: Solid cortex with permeative medullary space. Pseudopermeative process: Cortex is permeative (multiple small holes). Differential Aggressive osteoporosis. Hemangioma. Radiation changes. diagnosis of pseudopermeative lesion? Only finding ooser fracture: Fracture through large osteoid seams. Occur in femur, pelvis, and scapula. L that is pathognomonic for osteomalacia In children, Flared and irregular epiphyses. Findings osteomalacia is called rickets. Long bones may bend. Pathognomonic for hyperparathyroidism? Most commonly involves radial aspect of middle phalanges of hand. Subperiosteal bone resorption. Rugger jersey spine Spine endplate osteosclerosis resembles stripes on rugby jerseys. Few skeletal changes occur in hypoparathyroidism, but the following may be seen: Calvaria may thickened. Basal ganglia calcification. Pseudohypoparathyroidism findings Failure of tissues to respond to PTH. Obesity, round facies, short stature, brachydactyly. Acromegaly radiographic findings Calvarial...
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