Acute sensory ataxic neuropathy

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Acute sensory ataxic neuropathy

ORPHA:231466Disease

Also called ASAN · Acute sensory ataxic GBS · Acute sensory ataxic Guillain-Barré syndrome

What it is

A rare variant of Guillain-Barré syndrome characterized by acute onset monophasic sensory neuropathy with diminished or absent tendon reflexes, loss of proprioception, positive Romberg sign and nerve conduction features of demyelination. It presents several weeks after acute infection with paresthesias, ataxia and neuropathic pain.

Key facts

Age of onset
All ages
Inheritance
Multigenic/multifactorial, Not applicable
Classified as
Disease

ICD-10 codes

G61.0filed under a broader ICD-10 category — shared with 11 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

MONDO 0016500UMLS C4707661

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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