ModulePublishedclinician-educationstroke-escalationimaging

Acute vs chronic stroke on imaging — ‘encephalomalacia’, ‘gliosis’, and old infarcts (Advanced)

Advanced course: how radiology reports describe old strokes vs acute infarcts, why CT/MRI look different over time, and how to ask what findings are relevant to current symptoms.

Cross-cuttingCaregiver, SurvivorAdvanced24 minGrade 11

Educational only

Educational only — not medical advice.

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If a patient develops new or worsening stroke symptoms, reduced consciousness, seizure, severe headache, airway/swallowing danger, or unstable vital signs, activate emergency response and follow local stroke escalation protocols.

Key takeaways

  • Explain common terms for old stroke injury on imaging
  • Know why ‘old’ findings may or may not relate to current symptoms
  • Explain why MRI sequences help with timing
  • Ask which findings are acute vs chronic and what each means

Why this matters

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Clinical frame

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Core clinical idea

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Assessment and workup

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Clinical reasoning pathway

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Management and team actions

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Common pitfalls

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Patient-safe explanation

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Escalation and safety signals

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Applied case

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Clinical scenario

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Common misconceptions

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Reflect

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Key takeaways

  • Understand common terms for old stroke injury on imaging
  • Advanced stroke care requires reconciling the clinical syndrome with timing, imaging, medication risk, patient context, and local pathway capacity.
  • A safe plan names escalation thresholds, responsible clinicians, patient-facing instructions, and the next step if results or symptoms change.

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 4 answered

Question 1

1. A learner is applying this lesson on Acute vs chronic stroke on imaging — ‘encephalomalacia’, ‘gliosis’, and old infarcts. Which approach best reflects advanced clinical reasoning?

Question 2

2. Which actions show safe handling of Acute vs chronic stroke on imaging — ‘encephalomalacia’, ‘gliosis’, and old infarcts? Select all that apply.

Question 3

3. Match each reasoning element to its role in Acute vs chronic stroke on imaging — ‘encephalomalacia’, ‘gliosis’, and old infarcts.

Question 4

4. For Acute vs chronic stroke on imaging — ‘encephalomalacia’, ‘gliosis’, and old infarcts, a normal or non-specific early test result is enough to stop reassessment when the clinical syndrome still suggests risk.

References

  1. Tier 2RadiologyInfo.org2025
    CT Angiography of the Head
  2. Tier 2RadiologyInfo.org2025
    Magnetic Resonance Imaging (MRI) - Head
  3. Tier 1American Heart Association/American Stroke Association2019
    Guidelines for the Early Management of Patients With Acute Ischemic Stroke: 2019 Update