According to the Veterans Administration Lung Study Group (VALSG), limited stage (LS) small cell lung cancer is defined as

Q. According to the Veterans Administration Lung Study Group (VALSG), limited stage (LS) small cell lung cancer is defined as :

A.            Disease confined to one hemithorax that can be encompassed in a tolerable radiation field

B.            Disease that can be treated with four cycles of radiation concurrent with chemo and not involving opposite side mediastinal nodes

C.            Disease involving less than 90% of one lung and at most contralateral scalene nymph nodes

D.            none of the above

Answer: Disease confined to one hemithorax that can be encompassed in a tolerable radiation field