ModuleDraftEmergency

Study module: neuroanatomy + stroke syndromes (localization high-yield)

High-yield neuroanatomy/localization for stroke: anterior vs posterior circulation patterns, cortical vs subcortical signs, common lacunar syndromes, and red-flag brainstem findings.

ClinicianClinicianAdvanced35 minClinical (pro)

Educational only

Educational only — localization guides evaluation but does not replace imaging and specialist assessment.

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New or worsening neurologic deficit is an emergency: activate local stroke alert/emergency response immediately and document last known well time. Localization guides evaluation but must not delay imaging/treatment.

Key takeaways

  • Differentiate anterior vs posterior circulation presentations
  • Recognize cortical signs vs lacunar patterns
  • Identify common lacunar syndromes
  • Identify posterior circulation red flags requiring urgent escalation

Big buckets

  • Anterior circulation (ICA/MCA/ACA)
  • Posterior circulation (vertebrobasilar)

Cortical signs

  • Aphasia
  • Neglect
  • Gaze deviation
  • Visual field cuts

Lacunar patterns (examples)

  • Pure motor
  • Pure sensory
  • Ataxic hemiparesis
  • Dysarthria-clumsy hand

Posterior circulation red flags

  • Vertigo with neuro deficits
  • Diplopia
  • Dysphagia
  • Crossed findings
  • Decreased LOC

Exam-style prompts

  • Which artery territory fits?
  • What imaging to prioritize?
  • Escalation triggers

Practice check

What you’ll practice

These questions are untimed. After you answer all of them, you’ll see your score and a clear next lesson or reference step.

0 of 3 answered

Question 1

1. Which is a classic cortical sign?

Question 2

2. Sudden dizziness plus double vision and trouble swallowing raises concern for…

Question 3

3. Lacunar strokes can present without clear cortical signs like aphasia.

References

  1. Tier 1
    AHA/ASA AIS Guideline 2019 Update (clinical assessment framing)
  2. Tier 4
    NINDS Know Stroke (signs and urgency)