Abstract
Headache may be a cardinal symptom in a patient with an intracranial infection. Meningitis, meningoencephalitis, empyema, and brain abscess are the most frequent infections of the central nervous system. They are usually accompanied by severe headache, usually acute at onset, accompanied by high temperature, altered level of consciousness, in addition to alterations in the neurologic examination. In this minireview, the authors intend to show and comment on some neuroimaging aspects found during the investigation of patients with a headache caused by an infectious intracranial lesion.