Among 659 resected
lung cancer cases from 1994 to 2009, 57 secondary
lung cancers (8.6%) were evaluated. The secondary
tumors were synchronous, located in the same lobe in 10, the ipsilateral different lobe in 17, and the contralateral lobe in 13, or metachronous, located in the contralateral lobe in 15, and the ipsilateral different lobe in 5. Both the
tumors were removed in 49 cases.
Chemotherapy, stereotactic
radiotherapy (SRT), photo dynamic
therapy (
PDT), or best supportive care (BSC) was selected after a lobectomy or
segmentectomy of the 1st
tumor in 8 cases considering the patient's condition. Lobectomy or
segmentectomy should be indicated for the 1st
tumor considering curability. Bilobectomy is adopted for multiple
cancers involving middle lobe. According to the operability or pulmonary function, the same strategy is adopted for secondary
cancer. Considering the patient's condition, possibility of
metastases and the
tumor location and histologic type, partial resection, SRT,
PDT, or BSC could be selected.