Case 598 · ICHD-3 9.2.1.1
9.2.1.1 Acute headache attributed to systemic bacterial infection
- 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
History: A 45-year-old male patient presents to the emergency department with a high fever (39.5°C), chills, and a diffuse, pulsatile, and severe headache lasting 12 hours. He reports general malaise, myalgia, and prostration. He denies photophobia, phonophobia, or neck stiffness. Two days ago, he developed a productive cough with purulent sputum.
Physical Examination: The patient is tachycardic (HR 112 bpm), tachypneic (RR 24 breaths per minute), and hypotensive (BP 85/50 mmHg). Pulmonary auscultation reveals crackles at the right base. The abdomen is unremarkable. Neurologically, there are no focal deficits.
Complementary Exams:
Complete Blood Count: Leukocytosis (18,000/mm³) with a left shift.
Elevated CRP (320 mg/L).
Chest X-ray: Right lower lobe consolidation.
Blood cultures are in process.
Lumbar puncture (performed due to suspicion of meningitis): Clear cerebrospinal fluid, no pleocytosis.
Report this case — e.g. suspected re-identification risk.