Schwannoma of Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Schwannoma of Bone

Fig. 43.1 Schwannoma of mandible. Panoramic radiograph showing a large lytic lesion at left Fig. 43.2 Periosteal schwannoma of femur. (a) Radiograph shows a translucent external indentation in the cortical…

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Medullary Osteoma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Medullary Osteoma

Fig. 7.1 X-ray of the humerus. In the metaphyseal area, the sclerotic round intramedullary lesion corresponds to an enostoma Fig. 7.2 Enostoma located in the upper end of the femur….

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Lipoma of Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Lipoma of Bone

Fig. 41.1 (a) Radiograph of a lipoma in the proximal end of the fibula with some central areas of calcification. (b) MPR CT of same case. Coronal view. (c) MRI…

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Fibrosarcoma of Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Fibrosarcoma of Bone

Just as for osteosarcoma, fibrosarcoma has a preference for the metaphyses of long bones, especially the distal femur, with the proximal femur, distal humerus, proximal tibia, and pelvis following in…

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Avulsion Injury

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Avulsion Injury

Fig. 60.1 (a) X-ray and (b) CT scan showing an avulsion injury in the ischial tuberosity (ischial apophyseolysis), at the insertion of the hamstring muscles. Muscle contraction pulled off a…

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Erdheim-Chester Disease

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Erdheim-Chester Disease

Fig. 72.1 Erdheim-Chester disease of the distal femur. There is a poorly defined zone of increased radiodensity with cortical thickening. This change is identical to chronic osteomyelitis The cortices are…

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Multiple Enchondromatosis (Ollier’s Disease)

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Multiple Enchondromatosis (Ollier’s Disease)

Fig. 17.1 Radiograph shows multiple enchondromas involving whole digits and metacarpal bones leading to extreme deformity Fig. 17.2 Gross specimen, as illustrated in Fig. 17.1, shows numerous grayish-blue cartilage masses…

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Leiomyosarcoma of Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Leiomyosarcoma of Bone

Fig. 40.1 Leiomyosarcoma of the metaphysis and diaphysis of a femur. Specimen photography and radiography. The lesion involved metallic implants from a previous surgical procedure. (a) Whitish-pink firm and elastic…

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Amyloidosis in Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Amyloidosis in Bone

Fig. 70.1 Plain radiograph of the wrist showing an expansile mass of amyloid in the distal ulna Epidemiology The average age of these patients is 57 years. Both men and…

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Fibro-osseous Pseudotumor of Digits

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Fibro-osseous Pseudotumor of Digits

Fig. 62.1 (a) Roentgenograph of the proximal phalanx of the hand showing a dense soft tissue mass with a periosteal reaction. (b) Sagittal MRI evidences of the soft tissue swelling…

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