Tension pneumocephalus with Mount Fuji sign

Case contributed by Stefan Tigges
Diagnosis certain

Presentation

Recent drain placements for bilateral subdural collections.

Patient Data

Age: 70 years
Gender: Male

Air is present within the anterior cranial fossa.

Bilateral subdural drains in place within bilateral subdural fluid collections. Gas in the anterior cranial fossa surrounding and separating the frontal lobes which have an abnormally pointed appearance.

Case Discussion

The "Mt Fuji" sign has been described as a finding suggesting tension pneumocephalus.

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