Mediastinitis MRI

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Mediastinitis Microchapters


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Historical Perspective




Differentiating Mediastinitis from other Diseases

Epidemiology and Demographics

Risk Factors


Natural History, Complications and Prognosis


Diagnostic Criteria

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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]


MRI may be used in the diagnosis of mediastinitis. Findings on MRI suggestive of mediastinitis include mediastinal or hilar mass and calcifications of the central mass.[1] Pattern of involvement in mediastinitis is essentially similar to mediastinitis CT scan.[2] Findings on MRI suggestive of mediastinitis include heterogeneous but iso signals, mediastinal or hilar mass, and calcifications of the central mass.


Findings on MRI suggestive of mediastinitis include:[2][3][4]

  • T1: typically heterogeneous but overall iso signal to muscle
  • T2: variable with both high 3 and low 2-3 signal within the same lesion
  • T1 C+ (Gd): may show heterogeneous enhancement
  • Mediastinal or hilar mass
  • Calcifications of the central mass


  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.
  2. 2.0 2.1 Fibrosing mediastinitis. (2015) Accessed on October 2, 2015
  3. Rossi SE, McAdams HP, Rosado-de-Christenson ML, Franks TJ, Galvin JR (2001). "Fibrosing mediastinitis". Radiographics. 21 (3): 737–57. doi:10.1148/radiographics.21.3.g01ma17737. PMID 11353121.
  4. 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.

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