2008年6月29日星期日

Bone tumor-like illness

Isolated bone cyst, which was separated for a number of bone crest of Nangqiang size, or even a bubble-like. The structure of rough comparison, the marrow expansion Obviously, the more single-room-wall thickness. 3, the other bone cyst in the pelvis, skull, ribs and calcaneus, and other parts, they do not have a long bone cyst of the typical symptoms, and the basic performance of limitations for the expansion of transmission, smooth edges, irregular intervals trabecular bone , A foam or honeycomb-like changes were significant expansion of a bone fracture, and other features. As the erosion of bone cysts, bone thinning, expansion prone pathological fracture. Patients under the age, the prevalence of different positions. Close to the level of epiphyseal plate is divided into: active and quiescent. Isolated bone cyst divided into single-room or room of the two. Whether single room and the room of the bone cysts are shown as oval or circular translucent, clear edge, no periosteal reaction and soft tissue swelling ,65-70 percent of patients with bone is isolated within the benign bone tumor . Cyst Duocheng oval, single-room, not rules-based. Capsule wall for a thin, smooth layer of fibrous tissue, was off-white or brown-red, sometimes a wall fiber bone prominent ridge to the capsule, the wall of the cyst because of cortical bone thinning obvious oppression. Isolated bone cyst more common, accounting for primary bone tumor 2.5 percent, accounting for four percent of benign tumors. The male to female ratio is 2:1, the high rate of the age of 11-20 years of age. Isolated bone tumors occur in the femur, tibia and humerus top, followed by other parts. Clinical observations: isolated bone swollen capsule patients themselves without feeling a slight pain or pressure and pain, a lower limb dysfunction, walking limp. However, because the majority of patients with post-traumatic pathological fracture occurred were not found. Isolated bone cyst in the long bones and how the single room of the cyst. 1, more common in single-room of the backbone, or long bone metaphysis cancellous bone, a central, an oval or shuttle type, and more for osteolytic damage, lesions of the smaller, expansion of growth. Damaged areas of low density than interlocking cavity, with a transparent, and the two ends of the normal bone boundaries clear. Cortical bone thinning, serious paper thin, but still cortical bone integrity. 2, the more rare bone cyst, and more in the long bones metaphysis and spongy bone marrow, or backbone, a round or oval-shaped translucent area pathological fracture.

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