Table 4. Discordant cases between WFO and the MDT recommendation by stage.

Stage	Discordant case, No.	WFO suggestion	MDT suggestion	Causes of discordance [No. of cases]
Stage I NSCLC	1	Surgery	RT	Combined IPF [1]
	2	RT	Surgery	Patient’s preference [2]Ϯ
Stage II NSCLC	4	Surgery	CCRT	Risk for pneumonectomy [2]ф Inadequate surgical candidate [1]
			RT	Inadequate surgical candidate [1]
	1	CCRT	RT	Risk for chemotherapy [1]
Stage III NSCLC	2	Surgery	CCRT	Risk for pneumonectomy [1]ф
			RT	Inadequate surgical candidate [1]
	12	CCRT	Surgery	Patient’s preference [3]Ϯ
			RT	Risk for chemotherapy [3]
			Medical treatment	Inadequate CCRT candidate [3] Suspected advanced stage [2]ǂ For targeted therapy [1]
Limited SCLC	2	CCRT	Surgery	For tissue diagnosis [1]Ұ
			Medical treatment	Inadequate CCRT candidate [1]

^Ϯ, necessity to try surgical resection such as young age patient or patient's will; ^ф, mass site was considered to need pneumonectomy during surgery, which will be an impossible burden on patients; ^ǂ, include pleural effusion which had not be proven by cytology and too extensive size of mass; ^Ұ, clinically suspected to be SCLC, but not proven by biopsy. NSCLC, non-small cell lung cancer; SCLC, small cell lung cancer; WFO, Watson for Oncology; MDT, multidisciplinary team; IPF, idiopathic pulmonary fibrosis.