Diagnosis of Chronic inflammatory demyelinating polyradiculoneuropathy.

There is no conclusive diagnostic test for CIDP making diagnosis difficult. The symptoms are common with many other auto immune disorders. This often means that diagnosis may take a long time.

A diagnosis of CIDP requires the following:

Weakness of two or more limbs
Partial loss of tendon reflexes
Progression over eight weeks or relapses
Nerve conduction studies show myelin damage in the peripheral nerves

Blood tests to exclude other autoimmune diseases

Evaluation and Tests including what is a neurological exam? Electro diagnosis, nerve/muscle biopsy, imaging & Quant Sensory testing

There are CIDP variants which are similar:

CIDP with Central Nervous System features

Focal upper limb demyelinating CIDP

Sensory CIDP

Childhood CIDP

CIDP: Acute onset

and more variants - go to CIDP variants

Pubmed Importance of the nerve biopsy for the diagnosis of atypical forms.
See treatment options.

PubMed information on diagnosis of CIDP.