Pseudomembranous colitis CT: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
m Changes made per Mahshid's request |
||
| (5 intermediate revisions by one other user not shown) | |||
| Line 5: | Line 5: | ||
==CT scan== | ==CT scan== | ||
* Common CT findings include wall thickening, low-attenuation mural thickening corresponding to mucosal and submucosal edema, the accordion sign, the target sign, double halo sign, pericolonic stranding, and ascites. | * Common CT findings include wall thickening, low-attenuation mural thickening corresponding to mucosal and submucosal edema, the accordion sign, the target sign, double halo sign, pericolonic stranding, and ascites. | ||
** The target sign, which consists of two or three concentric rings of different attenuation, indicates mucosal hyperemia and submucosal edema or inflammation. The rings of varying attenuation are best appreciated during the arterial phase of enhancement. | ** The target sign, which consists of two or three concentric rings of different attenuation, indicates mucosal hyperemia and submucosal edema or inflammation. The rings of varying attenuation are best appreciated during the arterial phase of enhancement. | ||
** The accordion sign is seen when orally administered contrast material becomes trapped between markedly thickened haustral folds, giving the appearance of alternating bands of high attenuation (contrast material) and low attenuation (edematous haustra). This sign is highly suggestive of PMC, although it is usually seen only in advanced cases. | ** The accordion sign is seen when orally administered contrast material becomes trapped between markedly thickened haustral folds, giving the appearance of alternating bands of high attenuation (contrast material) and low attenuation (edematous haustra). This sign is highly suggestive of PMC, although it is usually seen only in advanced cases. | ||
Image: | {| | ||
|- | |||
Pseudomembranous-colitis-001.jpg | | [[Image:Pseudomembranous-colitis-001.jpg|200px]] | ||
| [[Image:Pseudomembranous-colitis-002.jpg|200px]] | |||
Image: | | [[Image:Pseudomembranous-colitis-003.jpg|200px]] | ||
|} | |||
Pseudomembranous-colitis-002.jpg | |||
Image: | |||
Pseudomembranous-colitis-003.jpg | |||
==References== | ==References== | ||
| Line 29: | Line 21: | ||
[[Category:Bacterial diseases]] | [[Category:Bacterial diseases]] | ||
[[Category:Conditions diagnosed by stool test]] | [[Category:Conditions diagnosed by stool test]] | ||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Patient information]] | [[Category:Patient information]] | ||
Latest revision as of 18:49, 18 September 2017
|
Pseudomembranous colitis Microchapters |
|
Differentiating Pseudomembranous Colitis from other Diseases |
|---|
|
Diagnosis |
|
Treatment |
|
Case Studies |
|
Pseudomembranous colitis CT On the Web |
|
American Roentgen Ray Society Images of Pseudomembranous colitis CT |
|
Risk calculators and risk factors for Pseudomembranous colitis CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
CT scan
- Common CT findings include wall thickening, low-attenuation mural thickening corresponding to mucosal and submucosal edema, the accordion sign, the target sign, double halo sign, pericolonic stranding, and ascites.
- The target sign, which consists of two or three concentric rings of different attenuation, indicates mucosal hyperemia and submucosal edema or inflammation. The rings of varying attenuation are best appreciated during the arterial phase of enhancement.
- The accordion sign is seen when orally administered contrast material becomes trapped between markedly thickened haustral folds, giving the appearance of alternating bands of high attenuation (contrast material) and low attenuation (edematous haustra). This sign is highly suggestive of PMC, although it is usually seen only in advanced cases.
|
|
|