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pneumoperitoneum

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Pneumoperitoneum is pneumatosis (abnormal presence of air or other gas) in the peritoneal cavity, a potential space within the abdominal cavity. The most common cause is a perforated abdominal organ, generally from a perforated peptic ulcer, although any part of the bowel may perforate from a benign ulcer, tumor or abdominal trauma. A perforated appendix rarely causes a pneumoperitoneum.

Key facts

Medical condition (new).name
Pneumoperitoneum
Medical condition (new).image
Pneumoperitoneum modification.jpg
Medical condition (new).caption
Frontal chest X-ray. The air bubble below the right hemidiaphragm (on the left of the image) is a pneumoperitoneum.

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Research

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Commons category
Pneumoperitoneum
NCI Thesaurus ID
C99012
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Article

9 sections
Contents
  • Causes
  • Spontaneous pneumoperitoneum
  • Diagnosis
  • Differential diagnosis
  • Treatment
  • Terminology
  • See also
  • References
  • External links

Pneumoperitoneum is pneumatosis (abnormal presence of air or other gas) in the peritoneal cavity, a potential space within the abdominal cavity. The most common cause is a perforated abdominal organ, generally from a perforated peptic ulcer, although any part of the bowel may perforate from a benign ulcer, tumor or abdominal trauma. A perforated appendix rarely causes a pneumoperitoneum.

Spontaneous pneumoperitoneum is a rare case that is not caused by an abdominal organ rupture. This is also called an idiopathic spontaneous pneumoperitoneum when the cause is not known.

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