Pneumoretroperitoneum

Pneumoretroperitoneum is by definition presence of gas within the retroperitoneal space. It is always abnormal and has a relatively small differential:

If localised, and especially in the presence of an air-fluid level, a retroperitoneal abscess should be suspected.

Differential diagnosis

On plain radiography the differential is that of gas in other spaces which also projects over the abdomen. It thus includes:

CT has little difficulty in distinguishing these.

See also

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Article information

rID: 6167
Section: Gamuts
Synonyms or Alternate Spellings:
  • Retropneumoperitoneum
  • Retroperitoneal gas

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Cases and figures

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    Axial

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    Case 1: post ERCP
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     Case 2
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    Gas bubbles disse...
    Case 3: post colonoscopy
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    Case 7: post ERCP
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    Case 8: emphysematous pyelonephritis
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    Case 9
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