Liver trauma - AAST grade IV

Case contributed by Lam Van Le
Diagnosis almost certain

Presentation

Abdominal pain following blunt abdominal trauma due to a traffic accident. Elevated liver transaminase levels (ALT/AST = 451/505 U/L).

Patient Data

Age: 15 years
Gender: Male
This study is a stack
Axial
non-contrast
This study is a stack
Axial C+
arterial phase
This study is a stack
Axial C+ portal
venous phase
This study is a stack
Axial C+
delayed
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Info

A laceration with an intraparenchymal haematoma involving segments IV, V, and VIII of the liver (Couinaud classification) is noted, measuring approximately 82 x 65 x 82 mm, with an active bleeding site inside. A small amount of subcapsular haematoma is present on the anterior liver surface.

Suspected renal contusion with subcapsular haematoma of the right kidney (grade I according to AAST).

Free fluid with low attenuation (<10 HU) is observed in the pelvic cavity.

Several small cysts in the left kidney, including both simple and complex cysts.

No pneumoperitoneum is detected.

Case Discussion

The imaging findings are consistent with a grade IV liver injury according to the AAST classification, with active haemorrhage, along with a grade I right renal injury.

The patient's clinical and haemodynamic status is stable, and blood test results, including red blood cell count and haemoglobin levels, are within normal limits. Conservative medical management has been recommended.

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