翻訳と辞書
Words near each other
・ Companion (caregiving)
・ Companion (Doctor Who)
・ Companion Animal Parasite Council
・ Companion case
・ Companion cavalry
・ Companion Credit Union
・ Companion diagnostic
・ Companion dog
・ Companion dog (title)
・ Companion Gal
・ Companion Group
・ Companion matrix
・ Companion parrot
・ Companion Piece
・ Companion planting
Companion shadow
・ Companion to British History
・ Companion weapon
・ Companionate Marriage
・ CompanionLink
・ Companions (EP)
・ Companions in Crime
・ Companions in Nightmare
・ Companions of Saint Nicholas
・ Companions of the Cross
・ Companions of the Hall
・ Companions of the Rass
・ Companions of William the Conqueror
・ Companions of Xanth
・ Companionship Exemption


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Companion shadow : ウィキペディア英語版
Companion shadow

Companion shadow is a term used in describing radiographs that denotes the appearance of a smooth, homogenous, radiodensity with a well-defined margin that runs parallel with a bony landmark. Companion shadows represent soft tissue that overlies the respective bony landmark in profile. They are not seen in every radiograph and can be misinterpreted as pathology.
== Types of companion shadow ==

* Clavicular companion shadow is a thin soft-tissue stripe along the upper edge of the clavicle.〔(), Lange S., Walsh G. Radiology of chest diseases, 2nd Edition, 1998〕
* Rib companion shadows parallel the ribs and measure 1–5 mm in diameter project adjacent to the inferior and inferolateral margins of the first and second ribs and the axillary portions of the lower ribs. These companion shadows of the first and second ribs occur in 35% and 31% of the population, respectively. Rib companion shadows represent the fat and muscles in the intercostal space. The shadows that accompany the ribs may mimic pleural and lung disease.〔(), Kurihara Y., Yakushiji Y.K., Matsumoto J., Ishikawa T., Hirata K., The Ribs: Anatomic and Radiologic Considerations, January 1999 RadioGraphics, 19, 105-119.〕
* Scapular companion shadow overlie the scapula, with a smooth, well-defined margin parallel to the medial border of the scapula. The companion shadow results from unusual radiographic position of the scapula, which causes a soft-tissue fold to occur along its medial border. Winging of the scapula may also be responsible for the shadow. Scapular companion shadows may be mistaken for a soft-tissue or pleural lesion.〔(), Lams p.m., Jolles H., The scapula companion shadow, January 1981 Radiology, 138, 19-23.〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Companion shadow」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.