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Annals of Cardiac Anaesthesia Annals of Cardiac Anaesthesia Annals of Cardiac Anaesthesia
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Table of Contents
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Year : 2012  |  Volume : 15  |  Issue : 2  |  Page : 163
Disappearing ring in chest cavity


1 Department of Cardiac Anaesthesia, Moulana Heart Foundation, Ooty Road, Perintalmanna, Kerala, Perintalmanna, India
2 Department of Cardiac Surgery, Moulana Heart Foundation, Ooty Road, Perintalmanna, Kerala, Perintalmanna, India

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Date of Web Publication16-Apr-2012
 

How to cite this article:
Venugopal V, Mahadevan R. Disappearing ring in chest cavity. Ann Card Anaesth 2012;15:163

How to cite this URL:
Venugopal V, Mahadevan R. Disappearing ring in chest cavity. Ann Card Anaesth [serial online] 2012 [cited 2019 Sep 23];15:163. Available from: http://www.annals.in/text.asp?2012/15/2/163/95084


A case of postoperative coronary artery bypass grafting (CABG) with ring shadow in the chest cavity is described; the ring disappeared when the chest tube was pulled out and the chest radiograph was repeated.

We describe the finding of single-ring opacity in the left pleural cavity of a postoperative CABG patient when his chest radiograph (CXR) was taken. The ring opacity was seen close to the chest tube in the CXR. There was no connection between the chest tube and the ring opacity, as shown in [Figure 1]. This was the day the wedding ring of one of the nursing staff was lost.
Figure 1: Single-ring opacity seen close to the chest tube

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We decided to pull out the chest tube a little before performing a re-exploration. A CXR was repeated after pulling out the tube and the ring opacity disappeared, as shown in [Figure 2]. Thus, the single-ring opacity turned out to be the end on view of the chest tube.
Figure 2: Disappeared ring opacity after the chest tube was pulled out

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The differential diagnoses of single-ring opacity on CXR are hydatid cyst (thin wall), abscess (thick wall, air fluid level) and tuberculous cavity (thick wall). Multiple-ring shadows are seen in bronchiectasis (bilateral, basal). [1]

 
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1.Hansell DM, Armstrong P, Lynch DA, McAdams HP. Imaging of diseases of the chest. 4 th ed. Philadelphia: Elsevier Mosby; 2005.  Back to cited text no. 1
    

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Correspondence Address:
Vijish Venugopal
Department of Cardiac Anaesthesia, Moulana Heart Foundation, Ooty Road, Perintalmanna, Kerala 679 322, Perintalmanna
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.95084

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1 RE: Disappearing ring in chest cavity
Srinivasan, S.
Annals of Cardiac Anaesthesia. 2012; 15(4): 318-319
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