12 year-old male with hypotension and hypoxia. The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The mastoid air cells are clear.The patient is intubated. There are fluids in the paranasal sinuses and soft tissue emphysema in the neck, which may be procedure related.
No acute intracranial abnormality. 