Exostosis


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Related to Exostosis: osteochondroma

exostosis

[‚ek·sə′tō·səs]
(medicine)
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.

Exostosis

 

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.

References in periodicals archive ?
His 6 month post-operative check-up revealed no complications but he will have regular follow-up for any painful, rapidly growing exostosis associated with his hereditary condition.
The classic imaging appearance of the lesion is an exophytic bony exostosis that is contiguous with, but not disruptive of, the bony cortex on radiographs.
Laterality of exostosis in surfers due to evaporative cooling effect.
Hallux valgus is distinct from a bunion, which is an exostosis on the dorsomedial aspect of the first metatarsal (MT) head.
If exostosis is present but not extremely advanced, remove it at the time of stapedectomy.
34) Interestingly, although there was radiographic evidence of arthrosis (progressive exostosis with joint space narrowing), there was no correlation with clinical outcome.
However, auditory exostosis is by no means a recent phenomenon.
In two separate operations, he underwent a canaloplasty with removal of the exostosis.
Anterior midline neck webbing with microgenia and symphyseal exostosis.
In a series of 22 operations on 20 patients with exostosis of the external auditory canal, Reber and Mudry described 2 cases of tympanic membrane perforation, 2 cases of exposure of the temporomandibular joint, and 2 cases of soft-tissue stenosis.
X-rays, clinical findings, and hormonal examinations may help to differentiate PD from other acquired deformities of the frontal bones, such as acromegaly, exostosis, and mucocele frontalis.