5.

照射野外复发患者肿瘤特征

Tumor characteristic of out-field recurrent patients

Tumor characteristics	No. of patients (n=5)
*：All mediastinal N3 nodal disease.
Primary tumor location (lung lobe)
Left upper	3
Left lower	0
Right upper	1
Right middle	0
Right lower	1
Primary tumor type
Central	4
Peripheral	1
T stage
T4	2
T2	3
N stage
N3	4*
N2	1