Hypesthetic-ataxic-hemiparesis in thalamic hemorrhage

Area of Science:

• Neurology
• Neurosurgery
• Radiology

Background:

• Hypertension is a significant risk factor for cerebrovascular events.
• Thalamic hemorrhages are relatively uncommon but can cause distinct neurological deficits.

Observation:

• Two patients with hypertension presented with acute onset hypesthetic-ataxic-hemiparesis.
• Computed tomography (CT) scans identified an area of increased attenuation in the contralateral thalamus, indicative of hemorrhage.

Findings:

• The clinical presentation correlated with the location of the thalamic bleed.
• CT findings confirmed acute thalamic hemorrhage as the cause of the observed symptoms.

Implications:

• This case series highlights the potential for thalamic hemorrhage to manifest as hemiparesis with sensory and cerebellar signs.
• Understanding the pathophysiologic connections between thalamic lesions and cerebellar/pyramidal system dysfunction is crucial for diagnosis and management.