Anoxic brain injury

Case contributed by Ryan Thibodeau
Diagnosis almost certain

Presentation

Found down at home. Unequal pupils on physical exam.

Patient Data

Age: 65 years
Gender: Male
ct

Symmetrical hypoattenuation of the deep grey matter structures (caudate nuclei and lentiform nuclei).

IIll-defined hypodensity at the left frontal lobe which is the external watershed area between the left anterior cerebral artery (ACA) and left middle cerebral artery (MCA) territories, in keeping with acute left external watershed infarct.

No acute intracranial bleed.

Case Discussion

This is a case of an anoxic brain injury given the clinical history and hypoattenuation of the deep grey matter structures. The patient was placed on comfort care shortly after this exam.

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