Hemiparetic Primary Lateral Sclerosis: Revisiting Mills Syndrome

Area of Science:

• Neurology
• Neuroscience
• Clinical Neurology

Background:

• Mills' syndrome, a rare neurological disorder, involves slowly progressive hemiparesis.
• Characterized by initial weakness in one limb, progressing to the ipsilateral side.
• First described in 1906, its exact etiology remains elusive.

Observation:

• This study details five new cases of progressive hemiparetic corticospinal tract degeneration.
• Patients presented with the characteristic slowly progressive hemiparesis.
• Diagnostic process involved excluding other potential neurological conditions.

Findings:

• The five cases align with the original description of Mills' syndrome.
• Diagnosis was confirmed through clinical presentation and comprehensive exclusion of alternative causes.
• Serological, imaging, and electrodiagnostic studies were crucial in identifying the condition.

Implications:

• These findings contribute to a better understanding of Mills' syndrome.
• Highlights the importance of a thorough differential diagnosis in progressive hemiparesis.
• May aid in future research for targeted treatments for corticospinal tract degeneration.