cd demyelinating polyneuropathies include Guillaiii-Barre Syndrome (acute inflammatory demyelinating polyradiculoneuropathy, or AIDP) and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) . These generally present with progressive weakness, sensory disturbances, and decreased or abwnt r e f l e ~e s . ~, ~, ~, ~, " ' , ~~, ~~ Reports of patients who have AIDP or CIDP, but who present with pure sensory clinical syndromes are rare.7,1x,20,21 We report 3 patients with sensory disturbances, normal strength, and spontaneous resolution of symptoms, whose electrodiagnostic studies were most consistent with acquired demyelinating sensorimotor polyneuropathies.
CASEREPORTS Patient 1.
A 31-year-old man developed tingling in his fingertips and toes 1 month prior to presentation. This ascended to his elbows and mid-feet over 2 weeks, then stabilized. He had had an upper respiratory infection 3 days prior to the onset of symptoms. Examination revealed normal strength and reflexes. Sensation to pin was decreased in the distal fingers on the right. Vibration and position sensations were normal. Laboratory studies revealed normal complete blood count, sedimentation rate, antibody to nuclear antigens, rheumatoid factor,