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Related Experiment Video

Updated: Jul 11, 2026

Massive Pontine Hemorrhage by Dual Injection of Autologous Blood

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Published on: May 29, 2021

[Hemiparkinsonism secondary to mesencephalic bleeding].

F Padilla Parrado¹, V M Campos Arillo, M D Martínez del Valle Torres

¹Servicio de Neurología, Hospital Clinico Universitario Virgen de la Victoria, Málaga. Iscivico@yahoo.es

Neurologia (Barcelona, Spain)

|September 15, 2007

Summary

Vascular parkinsonism, though common, rarely stems from isolated mesencephalic bleeding. This case highlights a young patient with hemiparkinsonism following such an injury, demonstrating unusual clinical progression.

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Last Updated: Jul 11, 2026

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Area of Science:

Neurology
Neuroscience
Vascular Neurology

Background:

Vascular parkinsonism is a significant cause of secondary parkinsonism.
Mesencephalic vascular lesions are infrequently associated with parkinsonian symptoms.

Observation:

A young patient presented with left hemiparkinsonism and fluctuating clinical course.
The patient experienced a right mesencephalic hemorrhage.

Findings:

Neuroimaging revealed mesencephalic injury.
Functional imaging demonstrated reduced uptake in the right striatal region, indicating dopaminergic dysfunction.

Implications:

This case underscores the potential for isolated mesencephalic vascular events to cause parkinsonism.
It highlights the complex and unpredictable clinical and treatment responses in such rare presentations.
Further research into mesencephalic vascular lesions and their neurological sequelae is warranted.