A case of subacute combined degeneration of the spinal cord diagnosed due to poor vitamin B12 elevation despite oral mecobalamin administration

Key Points

• This case explores the diagnosis of subacute combined degeneration tied to insufficient vitamin B12 response despite oral supplementation.
• Patient diagnosed with Ramsay Hunt syndrome and sensory impairment
• Monitored vitamin B12 levels during mecobalamin administration
• Conducted detailed medical history assessment
• Identified positive anti-intrinsic factor antibody
• Patient initially showed poor vitamin B12 elevation despite oral intake
• Diagnosis of subacute combined degeneration was made
• Neurological symptoms improved with vitamin B12 injections