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Related to Exostosis: osteochondroma


A benign cartilage-capped protuberance from the surface of long bones but also seen on flat bones, caused by chronic irritation as from infection, trauma, or osteoarthritis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a benign bony or bony-cartilaginous growth on the surface of a bone in the form of a linear or round mass. Exostoses develop mainly in males during childhood and adolescence, on the femur, tibia, humerus, and other bones. They cease to enlarge when bone growth ends. They usually do not cause complaints. However, fairly large exostoses compress muscles and nerve trunks, causing pain and hampering movement. The principal means of diagnosing exostoses is by X ray.

Exostoses are removed surgically if symptoms are pronounced or if the exostoses suddenly begin to grow rapidly in adults. Individuals suffering from exostoses are kept under clinical observation.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
On postoperative radiography and multidirectional computed tomography imaging, the implant setting was unproblematic, and the exostosis at the femoral neck had been removed (Figure 7).
Prevalence of oral tori and exostosis in Malaysian population - A cross-sectional study.
Masahiro and associates published a case with a small popliteal aneurysm and the first diagnostic procedure was radiographic examination, where they noticed exostosis of the femur bone, and after a CT was performed, a pseudoaneurysm was found [8].
Las exostosis y torus son lesiones que se presentan en los maxilares como prominencias compactas (1), la mayoria de las veces asintomaticas, recubiertas por mucosa de aspecto sano en las superficies vestibulares y linguales o palatinas de los maxilares.
Mandahl et al., "The t(X;6) in subungual exostosis results in transcriptional deregulation of the gene for insulin receptor substrate 4," International Journal of Cancer, vol.
In 1891, Orlow [9] originally described the bursa formation between an OC and the surrounding soft tissue as "exostosis bursata," although this had been recognized previously.
The most common cause of mass within with EAC is exostosis and osteomas [5].
The radiographs of the lower limbs showed the following features: short tibia (with exostosis) and fibula bones bilaterally (figure 3), bowed legs with "knock knees" (genu valgum) (figure 3), postaxial polydactyly in the left foot with the absence of the terminal phalange in the extra digit, and a clinodactyl right great toe.
A costal osteochondroma, which is also known as exostosis, results from the separation of the epiphyseal growth plate cartilage from the main epiphysis that causes lateral lying down of the bone (2).