8B26.50/G46.5 Pure motor lacunar syndrome



Pure motor lacunar syndrome is a rare neurological disorder caused by a small infarct in the brainstem, usually located in the basal ganglia. It is thought to be caused by vessel occlusion, leading to reduced blood flow and tissue damage in the affected area.


Diagnosis of pure motor lacunar syndrome is usually made through clinical evaluation, which includes a neurological exam to assess for motor deficits. Imaging studies, such as MRI and CT scan, may also be used to confirm the diagnosis.

Differential diagnosis

Differential diagnoses for pure motor lacunar syndrome include other neurological disorders that cause similar motor deficits, such as stroke, multiple sclerosis, and Parkinson’s disease.


Treatment for pure motor lacunar syndrome is focused on managing the motor deficits and preventing further progression. This may include physical therapy to improve strength and coordination, medications to reduce symptoms, and lifestyle modifications to reduce risk factors for further stroke.


The prognosis for pure motor lacunar syndrome is generally good, although the degree of motor deficits may vary among individuals. With proper treatment, patients can often regain some or all of their motor function.

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DISCLAIMER: Please note that all explAInations are generated by AI and are not fact checked by a medical professional. ICD ExplAIned do not assume liability for any injuries or harm based on the use of this medical information.