Monoclonal Gammopathy of Undetermined Significance (MGUS) in a Man with Fragile X-associated Tremor/Ataxia Syndrome

Table 1

FXTAS clinical, neuroimaging, and molecular results of the patient.

Intention tremor	began at age 55
Right upper extremity	Postural tremor (+)
	Kinetic tremor (+)
Left upper extremity	Postural tremor (+)
	Kinetic tremor (+)
Handwriting problems	began at age 58
Balance problem	began at age 58
Type of gait	Ataxic and broad based
Dependent on walker	Began at age 66
Memory problems	Began at age 63
Fragile X DNA test (CGG repeat number)	98–103 (premutation range)
FMR1 mRNA level	2.33±0.02 times normal
FXTAS diagnosis	Definite
FXTAS stage	4