"Given the rapid acuity of the clinical presentation, patients may die prior to neuroimaging. When performed, however, CT and MRI can demonstrate the cerebral hyperaemic swelling, brain herniation, and post-herniation ischaemia."
"Medical experts frequently debate whether second-impact syndrome is a unique condition or merely a variation of diffuse cerebral swelling, a known brain injury complication prevalent in younger patients. Critics suggest that these cases might not actually require a preceding concussion to occur. Furthermore, a systematic review revealed a lack of consistent data regarding symptoms and imaging, concluding that there is currently not enough evidence to establish a formal ICD-10 medical definition for the syndrome 9."
"Given the rapid acuity of the clinical presentation, patients may die prior to neuroimaging. When performed, however, CT and MRI can demonstrate the cerebral hyperaemic swelling, brain herniation, and post-herniation ischaemia."