Pneumoperitoneum Flashcards Preview

[PBR] Gastrointestinal Imaging > Pneumoperitoneum > Flashcards

Flashcards in Pneumoperitoneum Deck (6)
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1
Q

Free air in the peritoneal cavity is most commonly caused by what?

A

Duodenal or gastric ulcer perforation.

2
Q

Postoperative pneumoperitoneum usually resolves in how many days?

A

3 to 4 days

3
Q

In postoperative pneumoperitoneum.

Failure of progressive resolution, or an increase in the amount of air is suggestive of what?

A

Leak of bowel anastomoses or sepsis.

4
Q

Pneumoperitoneum in the absence of a ruptured viscus may occur with what processes?

A

Air introduced through the female genital tract by orogenital insufflation or in association with pulmonary emphysema, alveolar rupture, and dissection of air into the peritoneal cavity.

5
Q

Chest radiograph view that is most sensitive for free air.

A

Upright chest radiograph

6
Q

Good place to look for pneumoperitoneum in CT.

A

Peritoneal recess between the liver and diaphragm.