Table 3.

Alternative potential tremor mechanisms in IgM-MGUS neuropathy Cases (N = 25/60 total tremor patients, 42%)

IgM-Neuropathy Patients with Tremor
Comorbidity	Familial Essential Tremor	Parkinsonism	Cerebellar Ataxia	Alcohol	CNS Neoplasia	Meds	Multisystem Degeneration	Stroke
Frequency	6	4a	4b	3d	3d	3e	1	1f
Percent	24%	16%	16%	12%	12%	12%	4%	4%

^aParkinsonian features with rest and action component

^bCerebellar findings with tremor onset

^cDocumented alcohol abuse associated with tremor

^dTremor onset with CNS neoplasm

^eFluphenazine, metoclopramide, and thiothixene induced tremor

^fUnilateral hand tremor associated with hemiparesis, residuum from ipsilateral stroke