exostosis /ex·os·to·sis/ (ek″sos-to´sis)
1. a benign bony growth projecting outward from a bone surface.
2. osteochondroma.exostot´ic
exostosis cartilagi´nea a variety of osteoma consisting of a layer of cartilage developing beneath the periosteum of a bone.
ivory exostosis compact osteoma.
multiple exostoses an inherited condition in which multiple cartilaginous or osteocartilaginous excrescences grow out from the cortical surfaces of long bones.
subungual exostosis a cartilage-capped reactive bone spur occurring on the distal phalanx, usually of the great toe.
i·vo·ry exostosis (  v -r , vr)n. A small, rounded, extremely dense tumor arising from a bone, usually one of the cranial bones. |
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