Presentation
Deteriorating consciousness in a patient with a recent history of chronic subdural haematoma evacuation.
Patient Data
Age: 70 years
Gender: Male
From the case:
Tension pneumocephalus
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Bilateral subdural air causing compression and separation of the frontal lobes creating a characteristic appearance termed the "Mount Fuji sign" indicating tension pneumocephalus with air bubbles within the hypodense subdural fluid collection.
Two parietal burr holes are noted on 3D-VR.
Case Discussion
CT features of tension pneumocephalus post evacuation of bilateral subdural haematomas.
Tension pneumocephalus is considered a neurosurgical emergency that occurs when subdural air causes an extra-axial mass effect with compression of the frontal lobes.