Abdominal Trauma (Abdomen and Pelvis)

Question 1

CT finding

Hemoperitoneum:
What is the density of acute blood within the peritoneal cavity?

Answer 1

+30 to +45 H

Question 2

CT finding

Density of a sentinel clot?

Answer 2

> 60 H

May be seen in the peritoneal cavity adjacent to an injured organ

Question 3

CT finding

What is the evidence of active bleeding?

Answer 3

Extravasation of contrast - seen during arterial phase

+85 to + 370 H

Question 4

Causes of free contrast within the peritoneal cavity?

Answer 4

May result from oral contrast leaking from injured bowel or intravenous contrast leaking from a ruptured bladder

Question 5

Injury which appears as a crescent-shaped collections confined by the capsule of the injured organ

Answer 5

Subcapsular hematoma

Question 6

Injury which appears as irregularly shaped low-density areas within a contrast-enhanced solid organ

Answer 6

Intraparenchymal hematomas

Question 7

Injury appearing as jagged linear defects

Answer 7

Lacerations

Defined by lower-density blood within a contrast enhanced injured organ

Question 8

This reflects damage to the organ’s blood supply

Answer 8

Absence of organ enhancement