Acute motor axonal neuropathy--an atypical presentation

Area of Science:

• Neurology
• Immunology
• Neurophysiology

Background:

• Guillain-Barré syndrome is an autoimmune disorder affecting the peripheral nervous system.
• It presents with various subtypes based on clinical and pathological features.
• Rarely, a pure motor variant can occur without sensory nerve involvement.

Observation:

• This report focuses on two patients diagnosed with an acute, exclusively motor axonal neuropathy.
• Detailed clinical, immunological, and serial electrophysiological data were collected.
• The presentation mimicked Guillain-Barré syndrome but lacked sensory deficits.

Findings:

• The patients exhibited an acute onset of motor weakness.
• Electrophysiologic studies confirmed axonal damage in motor nerves.
• Immunological investigations provided insights into the autoimmune mechanisms involved.

Implications:

• This case series expands the understanding of Guillain-Barré syndrome variants.
• It highlights the importance of electrophysiologic and clinical assessments for accurate diagnosis.
• Further research may elucidate specific triggers and treatments for this pure motor axonal neuropathy subtype.