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.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.

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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).

Total Hip Arthroplasty Using a Polished Tapered Cemented Stem in Hereditary Multiple Exostosis

Prevalence of oral tori and exostosis in Malaysian population - A cross-sectional study.

FREQUENCY OF TORI IN PATIENTS SEEN AT PROSTHODONTICS DEPARTMENT OF ISLAMABAD DENTAL HOSPITAL

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.

Aparicion de exostosis 7 anos despues de aumento del reborde alveolar con tecnica de bolsillo

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.

Solitary Osteochondroma of the Ventral Scapula Associated with Large Bursa Formation and Pseudowinging of the Scapula: A Case Report and Literature Review

The most common cause of mass within with EAC is exostosis and osteomas [5].

A Rare Cause of a Fluctuating Cystic Lesion in the External Auditory Canal

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.

Ellis-van Creveld with an unusual dental anomaly: A case report

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).

Costal Osteochondroma Invaginating Into the Liver: A Case Report/Karacigere Invajine olan Kostal Osteokondrom: Olgu Sunumu