EURORAD ESR

Case 8636

MRI diagnosis of acute sigmoid colon diverticulitis in a young patient

Author(s)
Tonolini M.
 
Patient
male, 33 year(s)
 
 
  • Figure 1
    Unenhanced MR scans
     

    Axial T1- (a) and T2-weighted (b) images. Prominent wall thickening of sigmoid colon with small diverticular outpouchings.

     

    Axial T1- (a) and T2-weighted (b) images. Prominent wall thickening of sigmoid colon with small diverticular outpouchings.

     

    Axial (c) and sagittal (d) T2-weighted images. Presence of a 2.5 cm hyperintense mass abutting the posteroinferior wall of the proximal sigmoid colon.

     

    Axial (c) and sagittal (d) T2-weighted images. Presence of a 2.5 cm hyperintense mass (black arrow) abutting the posteroinferior wall of the proximal sigmoid colon.

     

    STIR images. Hyperintense signal of thickened sigmoid walls and of pericolonic soft tissue mass, consistent with inflammation but without frank fluid collections.

     

    STIR images. Hyperintense signal of thickened sigmoid walls and of pericolonic soft tissue mass, consistent with inflammation but without frank fluid collections.

     
     
     
  • Figure 2
    Contrast-enhanced MR scans
     

    Axial fat-saturated images after i.v. gadolinium. Marked enhancement consistent with active inflammation of the thickened sigmoid walls, involving also the perivisceral fat planes and adjacent fascia.

     

    Axial fat-saturated images after i.v. gadolinium. Marked enhancement consistent with active inflammation of the thickened sigmoid walls, involving also the perivisceral fat planes and adjacent fascia.

     

    Axial fat-saturated (c) and sagittal (d) images after i.v. gadolinium. Marked peripheral (abscess-like) enhancement of the perisigmoid mass.

     

    Axial fat-saturated (c) and sagittal (d) images after i.v. gadolinium. Marked peripheral (abscess-like) enhancement of the perisigmoid mass (black arrow in d).

     
     
     
Axial T1- (a) and T2-weighted (b) images. Prominent wall thickening of sigmoid colon with small diverticular outpouchings.
 
Axial T1- (a) and T2-weighted (b) images. Prominent wall thickening of sigmoid colon with small diverticular outpouchings.
 
Axial (c) and sagittal (d) T2-weighted images. Presence of a 2.5 cm hyperintense mass abutting the posteroinferior wall of the proximal sigmoid colon.
 
Axial (c) and sagittal (d) T2-weighted images. Presence of a 2.5 cm hyperintense mass (black arrow) abutting the posteroinferior wall of the proximal sigmoid colon.
 
STIR images. Hyperintense signal of thickened sigmoid walls and of pericolonic soft tissue mass, consistent with inflammation but without frank fluid collections.
 
STIR images. Hyperintense signal of thickened sigmoid walls and of pericolonic soft tissue mass, consistent with inflammation but without frank fluid collections.
 
Axial fat-saturated images after i.v. gadolinium. Marked enhancement consistent with active inflammation of the thickened sigmoid walls, involving also the perivisceral fat planes and adjacent fascia.
 
Axial fat-saturated images after i.v. gadolinium. Marked enhancement consistent with active inflammation of the thickened sigmoid walls, involving also the perivisceral fat planes and adjacent fascia.
 
Axial fat-saturated (c) and sagittal (d) images after i.v. gadolinium. Marked peripheral (abscess-like) enhancement of the perisigmoid mass.
 
Axial fat-saturated (c) and sagittal (d) images after i.v. gadolinium. Marked peripheral (abscess-like) enhancement of the perisigmoid mass (black arrow in d).
 
 
 
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