Diagnostic Examinations and Findings
| Test | Day of Hospital Course | Result |
|---|---|---|
| Computed tomography of the head without contrast | 1 | Mixed density right subdural hematoma with chronic and acute elements Left midline shift of 1.1 cm |
| Magnetic resonance imaging of the head without contrast | 1 | Right subdural hematoma overlying frontal, parietal, and temporal lobes with 5.8-cm left midline shift Small mixed-signal left epidural hematoma over left parietal lobe |
| Magnetic resonance angiography/venography of the neck | 1 | Normal blood flow |
| Computed tomography of the head without contrast | 2 | Interval worsening of sulcal effacement throughout the right cerebral hemisphere with concerns for loss of gray-white differentiation Interval decrease in right subdural hematoma and left epidural hematoma after surgery |
| Electroencephalogram | 2 | Multiple electrographic seizures with generalized onset, interictal epileptiform discharges with generalized spike waves, and generalized periodic discharges |
| Computed tomography angiogram of the head and neck | 3 | New anterior mediastinal soft tissue density with an irregular appearance along left internal mammary artery, suspicious for a pseudoaneurysm with minimal active bleeding Consolidation within the superior segment of the left lower lobe |
| Diagnostic angiography | 4 | Aneurysmal dilatation, segmental narrowing, and web formation of the left internal mammary artery |