Giant axonal swelling in "huffer's" neuropathy

Area of Science:

• Neurology
• Toxicology

Background:

• Chronic exposure to volatile solvents, such as lacquer thinner, is a known risk factor for neurological damage.
• "Huffing" or intentional inhalation of solvents can lead to severe systemic toxicity.

Observation:

• A young male patient presented with symptoms of toxic peripheral neuropathy after prolonged "huffing" of lacquer thinner.
• Clinical examination revealed significant slowing of nerve conduction velocities.

Findings:

• Sural nerve biopsy demonstrated characteristic pathological changes including giant axonal swelling, axonal degeneration, and increased paranodal gaps.
• These findings support a diagnosis of "huffer's" neuropathy.

Implications:

• The study suggests that "huffer's" neuropathy is primarily an axonal process with secondary demyelination.
• Cessation of solvent exposure is crucial for potential recovery and management of this condition.