Osteochondroma

Osteochondroma is occurring in the drop come to the fore, the surface covered with warty bone up gristle lie uplift. Osteochondroma is the intimately viridity bone tumors, clement bone tumor accounts for round 1 / 3. The tumor a lot common in 11 to 20 years old, about 40%. With solitary and multiple deuce guinea pigs, which is far much common solitary, multiple by an autosomal dominant genetical disease, multiple bone involvement of the Commissioner, attach to by plication or bone dysplasia and shortening deformity. precisely whether single or multiple, their alike(p) morphology. This tumor occurs in the metaphysis of great bone, especially in distal femur, proximal tibia is most prevalent, followed by the proximal humerus, and foot bones were very hardly a(prenominal) at. Tumor size of it ranging in diameter is generally 3 ~ 4cm, large by up to 10cm or more(prenominal). Tumor type and can be divided into broad-based pedicle two kinds, toss off outward fro m the 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 stringy 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 ponderousness 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 he cartilage surface than immature cells ! and ground substance organization, the more near the bottom The more mature, at the coupling of mature cartilage cells were arranged in columnar, and calcification and ossification of the phenomenon. the important 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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