Table 1. Characteristics of seven patients with SPC following chemoradiation.

Type of SPC	First to second cancer (years)	Smoking (pack-year)	Chemo	RT field	First symptom	Treatment of SPC	Survival after SPC (years)
Gall bladder	2.5	100	DP	Outside	Abdominal pain	Curative operation	1.2 (died of SPC)
Oesophagus	4.1	30	FP	Outside	None	Curative chemo RT	7.2 (alive)
Lung (adeno)	5.9	30	DP	Outside	None	Curative operation	1.6 (alive)
Oesophagus	8.3	50	FP	Inside	Dysphagia	Palliation	0.35 (died of SPC)
Lung (adeno)	8.3	68*	FP	Outside	None	Curative operation	1.5 (alive)
Bile duct	8.7	40	FP	Outside	Jaundice	Palliative chemo	0.79 (died of SPC)
Lung (small)	9.5	75	FP	Outside	None	Chemo	1.1 (alive)

Adeno=adenocarcinoma; chemo=chemotherapy; DP=docetaxel and cisplatin; FP=5-fluorouracil and cisplatin; RT=radiation; small=small-cell carcinoma; SPC=second primary cancer;

^*The number of 68 was the value at the time of diagnosis of initial NSCLC and this patient had continued smoking as SPC was found.