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Only thallium index shows statistical significance between malignant and nonmalignant brain lesions
Characteristic Infectious Lesions(n = 20) Malignant Lesions(n = 28)
Age (y) 42.5 ± 7.8 41.1 ± 7.6
Gender (% male) 70 89
Average size (cm) 1.98 ± 0.79 2.49 ± 1.47
Thallium index 1.59 ± 0.92 2.41 ± 2.14^*
* P < .004.
Characteristic	Infectious Lesions(n = 20)	Malignant Lesions(n = 28)
Age (y)	42.5 ± 7.8	41.1 ± 7.6
Gender (% male)	70	89
Average size (cm)	1.98 ± 0.79	2.49 ± 1.47
Thallium index	1.59 ± 0.92	2.41 ± 2.14^*