therefore , if it can not be logically concluded that the negative scintigraphic findings at the mediastinal level indicate the absence of metastases in the lymph nodes , thus indicating surgery ( or preventive mediastinoscopy ) , positive finding seem to be synonymous with extrapulmonary diffusion of the neoplastic process , with direct implication in determining the operability of the patient .
C0027627
metastases
C0027671
neoplastic process