Chondroma x ray: Difference between revisions

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**Large size
**Large size
*X-ray findings of each subtype are mentioned as followings:
*X-ray findings of each subtype are mentioned as followings:
*'''Osteoid osteoma'''
**Small, round lucency (nidus) with a sclerotic margin
*'''Osteoblastoma'''
**Similar to osteoid osteoma but is usually larger (>2 cm in diameter)
**Rarely extend into the soft tissues
*'''Osteochondroma and hereditary multiple osteochondromas'''
**Bony spur (sometimes large) that arises from the surface of the cortex and usually points away from the joint
*'''Enchondroma'''
*'''Enchondroma'''
**Oval, well-circumscribed, central lucent lesion, with or without matrix calcifications
**Oval, well-circumscribed, central lucent lesion, with or without matrix calcifications
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**Rim of sclerotic bone
**Rim of sclerotic bone
**Calcification
**Calcification
*'''Chondroblastoma'''
 
**Small, well-defined lesions with a sclerotic border that may cross the physis (growth plate)
*'''Chondromyxoid fibroma'''
**Eccentric, intramedullary, lobulated or bubbly lesion in the metaphysis
*'''Fibrous dysplasia'''
**Lytic lesion in the metaphysis or diaphysis with a "ground glass" appearance
**Cortical bone is thinned with a scalloped, undulating pattern due to endosteal erosion
*'''Ossifying fibroma'''
**Lytic thinning of the diaphyseal cortical bone with interspersed sclerosis
**Anterior or anterolateral bowing
*'''Nonossifying fibroma'''
**Small, well-defined, eccentric, expansile, lytic lesions located in the metaphysis with scalloped sclerotic border
*'''Unicameral bone cyst'''
**Well-marginated cystic lesions of the metaphysis or metadiaphysis without reactive sclerosis


==References==
==References==

Revision as of 19:10, 18 April 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]

Overview

On x rays, enchondroma is characterized by lytic lesions that contain calcified chondroid matrix.[1] On x rays, periosteal chondroma is characterized by matrix calcification with ring and arc pattern and saucerisation of the adjacent bony cortex with a sclerotic periosteal reaction.[2]

X Ray Findings

  • An x-ray may be helpful in the diagnosis of chondroma. Findings on an x-ray suggestive of chondroma include:
    • Well-defined or sclerotic border
    • Sharp zone of transition
    • Small size or multiple lesions
    • Confinement by natural barriers
    • Lack of destruction of the cortex
    • Lack of extension into the soft tissue
  • Following x-ray findings are suggestive of more aggresive lesion:
    • Poor definition
    • Cortical destruction ("moth-eaten" or permeative pattern)
    • Spiculated or interrupted periosteal reaction
    • Extension into the soft tissue
    • Large size
  • X-ray findings of each subtype are mentioned as followings:
  • Enchondroma
    • Oval, well-circumscribed, central lucent lesion, with or without matrix calcifications
    • May be expansion of the surrounding cortex, especially when the lesion is in the hand or foot
  • Periosteal chondroma
    • Small, scalloped, radiolucent lesions on the outer surface of the cortex in the metaphysis or diaphysis
    • Rim of sclerotic bone
    • Calcification


References

  1. Enchondroma. Wikipedia. https://en.wikipedia.org/wiki/Enchondroma Accessed on December 22, 2015.
  2. Juxta cortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on December 22, 2015


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