Case 582 · ICHD-3 9.1.1.1

9.1.1.1 Acute headache attributed to bacterial meningitis or meningoencephalitis

Origin

Synthetic

Language

English — also available in German

Contributed by

Imported case — HeadAI synthetic vignettes (de Andrade JBC, da Silva Costa TB, Vasconcelos JL, Lopes TLM, Balsells MD, Cristofolini VL, Querobin SO, Filho FMR. Validation of an AI-based platform for structured diagnosis of headache disorders using ICHD-3 criteria. BMC Neurology 25, 489 (2025). doi:10.1186/s12883-025-04473-1. Dataset: Andrade J. Head.AI Platform. Mendeley Data, V2 (2025). doi:10.17632/4fms6cw2s5.2)

Anamnesis

Patient: 25-year-old man, previously healthy. History: Reports severe and diffuse headache with sudden onset 12 hours ago, associated with high fever (39.5°C), neck stiffness, and photophobia. Describes worsening of pain with head movements. Nausea and vomiting are present. Physical Examination: Positive Kernig's and Brudzinski's signs. Mild mental confusion. Complementary Exams: Lumbar puncture with cloudy cerebrospinal fluid: neutrophilic pleocytosis (>1000 cells/mm³), elevated protein (>100 mg/dL), low glucose (<40 mg/dL). Culture positive for Streptococcus pneumoniae.

Report this case — e.g. suspected re-identification risk.