Table 1. Clinicopathological Correlation of MAML2 Rearrangement in PMECs.

	MAML2 rearrangement
Variables	Positive (n = 21)	Negative (n = 21)	P
Median age [range]	33 [14–73]	60 [27–76]	0.001
Gender (M/F)	13/8	12/9	1.000
Tumor size [range], cm	3.0 [0.5–6.5]	3.0 [0.5–10.0]	0.693
TNM stage
I∼IIA	19 (90.5)	17 (81.0)	0.663
IIB∼IV	2 (9.5)	4 (19.0)
LN involvement
Yes	2 (9.5)	5 (23.8)	0.410
No	19 (90.5)	16 (76.2)
Intrathoracic invasion
Yes	4 (19.0)	6 (28.6)	0.719
No	17 (81.0)	15 (71.4)
Pathological grade
Low/Intermediate	21 (100.0)	12 (57.1)	0.001
High	0 (0.0)	9 (42.9)
Recurrence/metastasis
Yes	2 (9.5)	7 (33.3)	0.130
No	19 (90.5)	14 (66.7)

Abbreviations: MAML2, mastermind-like gene 2; PMECs, pulmonary mucoepidermoid carcinomas; TNM, tumor-nodal-metastasis; LN, lymph node.