In a 55-year-old man with acute onset expressive (Broca's) aphasia, which of the following statements is NOT correct?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: September 27, 2026 • View editorial policy

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.

Ask Question

The Incorrect Statement is B: Expressive Aphasia is NOT Caused by Temporal Lobe Involvement

Statement B is NOT correct—Broca's expressive aphasia results from damage to the inferior frontal gyrus (Broca's area) in the frontal lobe, not the temporal lobe.

Anatomical Localization of Broca's Aphasia

The evidence clearly establishes that expressive (Broca's) aphasia involves specific frontal lobe structures:

  • Broca's area is located in the inferior frontal gyrus of the dominant (typically left) hemisphere 1
  • Impaired repetition in acute stroke is associated with structural damage to Broca's area and the arcuate fasciculus, along with tissue dysfunction in the inferior supramarginal gyrus and temporal-parietal junction 1
  • The temporal lobe is associated with Wernicke's area, which governs comprehension rather than production 1

Why the Other Statements ARE Correct

Statement A: It is Broca's Expressive Aphasia

This is definitionally correct—the question explicitly describes expressive (production) aphasia, which is synonymous with Broca's aphasia 2, 3.

Statement C: Left Middle Cerebral Artery Territory

The left middle cerebral artery (MCA) supplies the inferior frontal gyrus where Broca's area resides. MCA territory strokes are the classic vascular etiology for Broca's aphasia 4.

Statement D: Right-Sided Motor and Sensory Deficits

Broca's aphasia typically accompanies right-sided hemiparesis and sensory loss affecting the face and hand more than the leg because:

  • The motor and sensory cortices lie adjacent to Broca's area in the frontal lobe
  • The MCA territory includes both the inferior frontal gyrus and the motor/sensory strips
  • The cortical homunculus shows disproportionate representation of face and hand in the lateral convexity (MCA territory), while leg representation is more medial (anterior cerebral artery territory)

Critical Clinical Pitfall

Do not confuse temporal lobe involvement with frontal lobe pathology in aphasia syndromes:

  • Frontal (Broca's area) → Expressive/production deficits with relatively preserved comprehension
  • Temporal (Wernicke's area) → Receptive/comprehension deficits with fluent but nonsensical speech

The evidence demonstrates that while temporal lobe structures (particularly posterior middle temporal lobe) can affect aphasia therapy outcomes 1, the acute presentation of expressive aphasia specifically results from frontal lobe damage 5.

References

2
Research

Confusion vs Broca Aphasia: A Case Report.

The Permanente journal, 2020

Related Questions

What is the most appropriate medication to treat expressive aphasia resulting from long‑term antipsychotic use?
What is the management approach for brain bleeds in the Broca area?
What is the treatment for Broca's aphasia?
What are the possible causes of recurrent episodes of difficulty with word finding and expressive aphasia in a patient with no significant changes on Magnetic Resonance Imaging (MRI)?
What is the differential diagnosis for an 86-year-old woman with new intermittent confusion and aphasia that have become more frequent and longer in duration since Saturday, after acute stroke has been ruled out and routine laboratory studies are unremarkable?
What is the recommended duration of therapy with megestrol acetate (Megace) for a patient?
Can you interpret the laboratory results for a 48‑year‑old male with a history of hypertension, partial thyroidectomy, chronic migraine/rebound headache, sinus congestion, and current use of lisinopril, clonidine, psychiatric medications, and magnesium supplements?
Given a CT report showing subtle asymmetric appendiceal wall thickening up to 10 mm in the mid‑distal appendix, a tiny fluid‑filled diverticulum at the tip, a normal‑caliber base, and no calcified appendicolith or periappendiceal soft‑tissue stranding, what is the appropriate management?
Are the imaging findings of mild atherosclerotic calcification of the abdominal aorta and its major branching vessels, along with a retroaortic left renal vein, concerning in a 50‑year‑old woman with otherwise normal aortic and inferior vena cava caliber?
What is the recommended duration of therapy with erythromycin ophthalmic solution (0.5%) eye drops?
How should a patient with a positive anti‑cN1A antibody test and negative results for other myositis antibodies be evaluated and managed?

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.