Idiopathic Sensory Perineuritis

Diagnosis:

Clinical features of polyneuropathy, mononeuropathy multiplex, biopsy findings of perineuritis and exclusion of secondary causes

Clinical features:

sensory patchy neuropathy, sensorimotor forms exist.

Pathology, nerve biopsy:

Perineurium: inflammatory lymphocytic infiltrate, thickening of perineurium
Exclusion of other causes

Treatment:

Consider corticosteroids

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