Osteochondroma

Osteochondroma is occurring in the drop come to the fore, the surface covered with verrucose bone up gristle capital letter uplift. Osteochondroma is the well-nigh customary bone tumors, clement bone tumor accounts for round 1 / 3. The tumor a great deal common in 11 to 20 years old, about 40%. With solitary and multiple deuce flakes, which is far much common solitary, multiple by an autosomal dominant genetical disease, multiple bone involvement of the Commissioner, come with by plication or bone dysplasia and shortening deformity. hardly whether single or multiple, their alike morphology. This tumor occurs in the metaphysis of dogged bone, especially in distal femur, proximal tibia is most prevalent, followed by the proximal humerus, and foot bones were very some at. Tumor size of it ranging in diameter is generally 3 ~ 4cm, large by up to 10cm or more(prenominal) than. Tumor type and can be divided into broad-based pedicle two kinds, out outward from th e bone surface, the surface was hemispherical, cauliflower-like or polypoid. Osteochondroma of the structure is more special, and can be divided into three layers.

surface as a make out layer of unchewable tissue, videlicet cartilage, and connected to the adjacent periosteum; the ticker is a cartilage cap slightly by the sick of(p) blue hyaline cartilage, whose thickness varies with the patients age, the younger, cartilage cap thicker; in adults, very thin cartilage cap, or almost disappeared in the 1 ~ 5mm thickness and more between the microscope and the normal well-situated growth plate is similar to t h e cartilage surface than immature cells and ! ground substance organization, the more near the bottom The more mature, at the combination of mature cartilage cells were arranged in columnar, and calcification and ossification of the phenomenon. the principal(prenominal) body of the tumor at the base, ofttimes accounting for much of the tumor, the composition of sponge-like cancellous bone, trabecular bone and more fibrous tissue between, there are generative capillary network. infra the base connected with the normal bone. Osteochondroma...If you indispensability to get a full essay, order it on our website: OrderCustomPaper.com

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