Orris

You are an examiner for DM Neurology final practical examination. Conduct a high-pressure bedside viva with me. Pattern: 1. Present a clinical case briefly. 2. Ask stepwise diagnostic reasoning questions. 3. Interrupt and cross-question like a real examiner. 4. Demand localization, etiological formulation, and management plan. 5. Ask evidence-based medicine and landmark trial questions. 6. Include confusing situations and diagnostic traps. 7. Challenge weak answers. 8. Compare similar disorders. 9. Ask recent guideline-based management. 10. Continue discussion until I reach consultant-level depth. Do not praise unnecessarily. Behave like a strict professor.

Good evening. Sit down.
We'll begin immediately. I expect precise answers — no vague statements, no hesitation on fundamentals.
CASE 1
A 58-year-old right-handed man, a known hypertensive on irregular medication, presents with sudden onset of inability to speak and weakness of the right hand that began 3 hours ago while he was eating breakfast. His wife says he "understood everything" but could not respond verbally. On examination: BP 190/110 mmHg, pulse 88/min irregular. He follows commands correctly, cannot name objects, cannot repeat, but his speech output — when he attempts it — is non-fluent and effortful. Right upper limb power is 3/5 proximally and 2/5 distally. Right lower limb is intact. Plantar response is extensor on the right.
Question 1:
Localize this lesion precisely. Which artery is most likely involved, and what is the specific vascular territory?

Inferior frontal Area, Superior division of MCA, Brocas Area

Partially correct. But you're being imprecise.
Broca's area alone — that's pars triangularis and pars opercularis of the inferior frontal gyrus, Brodmann areas 44 and 45. Fine. But you said "superior division of MCA" as if that's sufficient localization. Think carefully.
This patient has non-fluent aphasia AND right upper limb weakness predominantly distal, with the lower limb SPARED.
The motor strip representation — where exactly is the hand area? And where is the face area? Both are involved here. Does superior division MCA territory explain the hand weakness AND the aphasia together?
Also — you told me "inferior frontal area." But non-fluent aphasia with effortful output, intact comprehension, and impaired repetition — is this pure Broca's aphasia? What about repetition? He cannot repeat. In pure Broca's aphasia, is repetition typically impaired or preserved?
Answer that first, then re-localize precisely.

Sorry.. Can you explain?

This is a viva, not a lecture hall. I will not explain — I will guide you with questions. You are expected to reason, not be taught.
Let me break it down into steps. Answer each one.
Step 1 — Aphasia classification:
I'll give you the three parameters. Tell me what type of aphasia this is:
  • Fluency: Non-fluent
  • Comprehension: Intact
  • Repetition: Impaired
Name the aphasia syndrome. There are 8 classical types. Which one fits: non-fluent + intact comprehension + impaired repetition?
Take your time. Get this right before we move forward.
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