コッドマン三角
WordNet
- a three-sided polygon (同)trigon, trilateral
- something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle"
- a percussion instrument consisting of a metal bar bent in the shape of an open triangle
- any of various triangular drafting instruments used to draw straight lines at specified angles
PrepTutorEJDIC
- 三角形 / 三角形の物 / 《米》三角定規 / (楽器の)トライアングル / 三つ組,三人組;(男女の)三角関係
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/12/27 12:38:17」(JST)
[Wiki en表示]
Codman triangle (previously referred to as Codman's triangle) is the triangular area of new subperiosteal bone that is created when a lesion, often a tumour, raises the periosteum away from the bone. [1] A Codman triangle is not actually a full triangle. Instead it is often a pseudotriangle on radiographic findings with ossification on the original bone and one additional side of the triangle which forms a two sided triangle with one open side. This two sided appearance in generated due to a tumor (or growth) that is growing at a rate which is faster than the periosteum can grow or expand, so instead of dimpling, the periosteum tears away and provides ossification on the second edge of the triangle. [2]
The main causes for this sign are osteosarcoma, Ewing's sarcoma, eumycetoma, and a subperiosteal abscess.[3][4]
References[edit]
- ^ General Practioner's notebook
- ^ Periosteal Reaction
- ^ Periosteal Ewing sarcoma
- ^ Imaging in Classic Osteosarcoma
Eponymous medical signs for skeletal system and joints
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Joints |
Arthropathy |
- osteoarthritis (Bouchard's nodes/Heberden's node)
- dermatomyositis (Gottron's papules)
- DeQuervain's syndrome (Finkelstein's test)
- anterior shoulder instability (Jobe's test)
- hip dysplasia
- Barlow's maneuver
- Ortolani test
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Dorsopathy |
- low back pain (Waddell's signs)
- sacroiliitis (Larrey's sign)
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Trauma/Orthopedics |
- Knee: ligament (Lachman test)
- meniscus
- Apley grind test
- McMurray test
- ligament and meniscus
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Skeletal/bone |
- bone tumor (Codman triangle)
- osteochondritis dissecans (Wilson test)
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Teeth |
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noco (arth/defr/back/soft)/cong, sysi/epon, injr
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anat (c/f/k/f, u, t/p, l)/phys/devp/cell
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noco/cong/tumr, sysi/epon, injr
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noco/cong/jaws/tumr, epon, injr
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dent, proc (endo, orth, pros)
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UpToDate Contents
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English Journal
- Distinguishing Osteomyelitis From Ewing Sarcoma on Radiography and MRI.
- McCarville MB1,2, Chen JY3, Coleman JL1, Li Y4, Li X4, Adderson EE5,6, Neel MD7, Gold RE1,2, Kaufman RA1,2,6.
- AJR. American journal of roentgenology.AJR Am J Roentgenol.2015 Sep;205(3):640-50; quiz 651. doi: 10.2214/AJR.15.14341.
- OBJECTIVE: The purpose of this study was to determine whether clinical and imaging features can distinguish osteomyelitis from Ewing sarcoma (EWS) and to assess the accuracy of percutaneous biopsy versus open biopsy in the diagnosis of these diseases.MATERIALS AND METHODS: Three radiologists reviewe
- PMID 26295653
- Central odontogenic fibroma (simple type) in a four-year-old boy: atypical cone-beam computed tomographic appearance with periosteal reaction.
- Anbiaee N1, Ebrahimnejad H1, Sanaei A1.
- Imaging science in dentistry.Imaging Sci Dent.2015 Jun;45(2):109-15. doi: 10.5624/isd.2015.45.2.109. Epub 2015 Jun 19.
- Central odontogenic fibroma (COF) is a rare benign tumor that accounts for 0.1% of all odontogenic tumors. A case of COF (simple type) of the mandible in a four-year-old boy is described in this report. The patient showed asymptomatic swelling in the right inferior border of the lower jaw for one we
- PMID 26125006
- Adult intramedullary ewing sarcoma of the proximal hip.
- Gongidi P1, Jasti S1, Rafferty W2, Barshay V1, Lackman R3.
- Case reports in radiology.Case Rep Radiol.2014;2014:916935. doi: 10.1155/2014/916935. Epub 2014 Jun 12.
- Ewing sarcoma of bone is classically a permeative lesion in the diaphysis of long bones in children. While they occur primarily in children and adolescents, they can be seen in young adults in their 20s, but these are typically seen in flat bones. The permeative nature of the lesion can elicit new b
- PMID 25024862
Japanese Journal
- Codman Lecture in the 4th International Conference on Surgery of the Shoulder
Related Links
- Cod·man tri·an·gle (kahd'man), in radiology, the interface between growing bone tumor and normal bone, presenting as an incomplete triangle formed by periosteum. Cod·man tri·an·gle (kod'măn trī'ang-gĕl) radiology The interface ...
- Cod·man's triangle (kŏd′mənz) n. The interface between a growing bone tumor and normal bone, appearing in an x-ray as an incomplete triangle formed by the periosteum. Codman's triangle a localized, triangular ridge of new bone ...
Related Pictures
![codman triangle arrow and more diffuse](https://1mg.info/0/a/o/0585.jpg)
![Codman's Triangle - triangular elevation](https://1mg.info/0/a/o/0587.jpg)
![tumblr_magn6bkMb31ru4rx5o2_500.jpg](https://1mg.info/0/a/o/0588.jpg)
![Lateral radiograph of the distal femur in](https://1mg.info/0/a/o/0589.jpg)
![Codman triangle - コッドマンの三角](https://1mg.info/0/a/o/0590.jpg)
★リンクテーブル★
[★]
- 英
- Codman's triangle, Codman triangle
- 関
- [[]]
[★]
- 関
- deltoid、triangular