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Updated: Feb 8, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

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Published on: January 18, 2018

Acute stroke presenting with isolated acalculia.

Michael Grimaldi¹, Rebecca Jeanmonod¹

¹St. Luke's University Health Network, 801 Ostrum Street, Bethlehem, PA 18015, USA.

The American Journal of Emergency Medicine

|June 25, 2018

Summary

Isolated acalculia, the inability to perform calculations, can be a sign of stroke. This case highlights that stroke should be considered even without other neurological deficits.

Area of Science:

Neuroscience
Neurology

Background:

Acalculia, the impairment of mathematical abilities, is often linked to neurological conditions like dementia, CNS neoplasms, and stroke.
Lesions in the left parietal cortex are the primary cause of acalculia.
In stroke patients, acalculia typically co-occurs with speech, sensory, or motor impairments.

Observation:

A 63-year-old male presented with a one-day history of isolated acalculia.
Neuroimaging revealed a left parietal lobe infarct and smaller infarcts in the left occipital lobe.

Findings:

The patient's isolated acalculia was attributed to a left parietal lobe infarct.
The absence of other neurological deficits in this case is noteworthy.

Implications:

Keywords:

Acalculia Stroke

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The diagnosis of stroke must be considered in patients presenting with acute difficulties in mathematics, reading, or writing.
Clinicians should maintain a high index of suspicion for stroke, even in the absence of associated neurological deficits.