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==Overview==
==Overview==
Upon CT Scan, the appearance of mediastinitis can be variable and dependent on the pattern of involvement.  
Findings on [[computed tomography|CT scan]] suggestive of mediastinitis include [[mediastinum|mediastinal]] or [[hilum|hilar]] mass, soft-tissue attenuation, [[calcification]]s of the central mass, [[tracheobronchial]] narrowing, and [[pulmonary]] infiltrates.<ref name=DOG> Fibrosing mediastinitis. Radiopedia.org (2015) http://radiopaedia.org/articles/fibrosing-mediastinitis Accessed on October 2, 2015 </ref><ref name="pmid6603112">{{cite journal| author=Weinstein JB, Aronberg DJ, Sagel SS| title=CT of fibrosing mediastinitis: findings and their utility. | journal=AJR Am J Roentgenol | year= 1983 | volume= 141 | issue= 2 | pages= 247-51 | pmid=6603112 | doi=10.2214/ajr.141.2.247 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6603112  }} </ref><ref name="pmid11222209">{{cite journal| author=Marom EM, Goodman PC, McAdams HP| title=Focal abnormalities of the trachea and main bronchi. | journal=AJR Am J Roentgenol | year= 2001 | volume= 176 | issue= 3 | pages= 707-11 | pmid=11222209 | doi=10.2214/ajr.176.3.1760707 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11222209  }} </ref>


==Computed tomography==
==Computed tomography==
Upon CT Scan, the appearance of mediastinitis can be variable and dependent on the pattern of involvement. Typically, the disease affects the middle [[mediastinum]] and may demonstrate:<ref> Fibrosing mediastinitis. Radiopedia.org (2015) http://radiopaedia.org/articles/fibrosing-mediastinitis Accessed on October 2, 2015 </ref><ref name="pmid6603112">{{cite journal| author=Weinstein JB, Aronberg DJ, Sagel SS| title=CT of fibrosing mediastinitis: findings and their utility. | journal=AJR Am J Roentgenol | year= 1983 | volume= 141 | issue= 2 | pages= 247-51 | pmid=6603112 | doi=10.2214/ajr.141.2.247 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6603112  }} </ref><ref name="pmid11222209">{{cite journal| author=Marom EM, Goodman PC, McAdams HP| title=Focal abnormalities of the trachea and main bronchi. | journal=AJR Am J Roentgenol | year= 2001 | volume= 176 | issue= 3 | pages= 707-11 | pmid=11222209 | doi=10.2214/ajr.176.3.1760707 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11222209  }} </ref>
On CT scan, the appearance of mediastinitis can be variable and dependent on the pattern of involvement. Typically, the disease affects the middle [[mediastinum]] and may demonstrate:<ref name=DOG> Fibrosing mediastinitis. Radiopedia.org (2015) http://radiopaedia.org/articles/fibrosing-mediastinitis Accessed on October 2, 2015 </ref><ref name="pmid6603112">{{cite journal| author=Weinstein JB, Aronberg DJ, Sagel SS| title=CT of fibrosing mediastinitis: findings and their utility. | journal=AJR Am J Roentgenol | year= 1983 | volume= 141 | issue= 2 | pages= 247-51 | pmid=6603112 | doi=10.2214/ajr.141.2.247 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6603112  }} </ref><ref name="pmid11222209">{{cite journal| author=Marom EM, Goodman PC, McAdams HP| title=Focal abnormalities of the trachea and main bronchi. | journal=AJR Am J Roentgenol | year= 2001 | volume= 176 | issue= 3 | pages= 707-11 | pmid=11222209 | doi=10.2214/ajr.176.3.1760707 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11222209  }} </ref>
*mediastinal or [[hilum|hilar]] mass
*Mediastinal or [[hilum|hilar]] mass
*infiltrative region of soft-tissue attenuation which obliterates normal mediastinal fat planes and encases or invades adjacent structures
*Infiltrative region of soft-tissue attenuation which obliterates normal mediastinal fat planes and encases or invades adjacent structures
*[[calcification]]s of the central mass or associated lymph nodes (especially if there has been preceding [[histoplasmosis]])
*[[Calcification]]s of the central mass or associated lymph nodes (especially if there has been preceding [[histoplasmosis]])
*[[tracheobronchial]] narrowing
*[[Tracheobronchial]] narrowing
*[[pulmonary]] infiltrates
*[[Pulmonary]] infiltrates
 
The following are a collection of radiological findings demonstrating the presence of fibrosing mediastinitis:


<gallery>
<gallery>
Image:Mediastinitis CT 1.jpg
Image:Mediastinitis CT 2.JPG|Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.<ref name=MediaCT2>Image courtesy of Dr. Darel E. Heitkamp. [http://www.radiopaedia.org Radiopaedia] (http://radiopaedia.org/cases/fibrosing-mediastinitis-1 ''here'']). [http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>


Image:Mediastinitis CT 2.jpg
Image:Mediastinitis CT 3.JPG|Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.<ref name=MediaCT2>Image courtesy of Dr. Darel E. Heitkamp. [http://www.radiopaedia.org Radiopaedia] (http://radiopaedia.org/cases/fibrosing-mediastinitis-1 ''here'']). [http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>


Image:Mediastinitis CT 3.jpg
Image:Mediastinitis CT 5.JPG|Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.<ref name=MediaCT2>Image courtesy of Dr. Darel E. Heitkamp. [http://www.radiopaedia.org Radiopaedia] (http://radiopaedia.org/cases/fibrosing-mediastinitis-1 ''here'']). [http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>


Image:Mediastinitis CT 4.jpg
Image:Mediastinitis CT 4.JPG|Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.<ref name=MediaCT2>Image courtesy of Dr. Darel E. Heitkamp. [http://www.radiopaedia.org Radiopaedia] (http://radiopaedia.org/cases/fibrosing-mediastinitis-1 ''here'']). [http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>


ImageMediastinitis CT 5.jpg
</gallery>
</gallery>


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
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Latest revision as of 18:02, 18 September 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Anthony Gallo, B.S. [2]

Overview

Findings on CT scan suggestive of mediastinitis include mediastinal or hilar mass, soft-tissue attenuation, calcifications of the central mass, tracheobronchial narrowing, and pulmonary infiltrates.[1][2][3]

Computed tomography

On CT scan, the appearance of mediastinitis can be variable and dependent on the pattern of involvement. Typically, the disease affects the middle mediastinum and may demonstrate:[1][2][3]

  • Mediastinal or hilar mass
  • Infiltrative region of soft-tissue attenuation which obliterates normal mediastinal fat planes and encases or invades adjacent structures
  • Calcifications of the central mass or associated lymph nodes (especially if there has been preceding histoplasmosis)
  • Tracheobronchial narrowing
  • Pulmonary infiltrates

The following are a collection of radiological findings demonstrating the presence of fibrosing mediastinitis:

  • Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
    Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
  • Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
    Axial CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
  • Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
    Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
  • Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]
    Coronal CT demonstrating airway narrowing of the right lower lobe bronchus. There is thickening of the right pleura and right interlobular septae. There are partially calcified right hilar and mediastinal lymph nodes.[4]

References

  1. ↑ 1.0 1.1 Fibrosing mediastinitis. Radiopedia.org (2015) http://radiopaedia.org/articles/fibrosing-mediastinitis Accessed on October 2, 2015
  2. ↑ 2.0 2.1 Weinstein JB, Aronberg DJ, Sagel SS (1983). "CT of fibrosing mediastinitis: findings and their utility". AJR Am J Roentgenol. 141 (2): 247–51. doi:10.2214/ajr.141.2.247. PMID 6603112.
  3. ↑ 3.0 3.1 Marom EM, Goodman PC, McAdams HP (2001). "Focal abnormalities of the trachea and main bronchi". AJR Am J Roentgenol. 176 (3): 707–11. doi:10.2214/ajr.176.3.1760707. PMID 11222209.
  4. ↑ 4.0 4.1 4.2 4.3 Image courtesy of Dr. Darel E. Heitkamp. Radiopaedia (http://radiopaedia.org/cases/fibrosing-mediastinitis-1 here]). Creative Commons BY-SA-NC


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