The author presents a case of a 70-year-old man, a current smoker on the treatment for COPD and internal comorbidities, who underwent the diagnostic procedures for a tumor located in the apex of the right upper pulmonary lobe. After the complete pulmonary function tests the right upper lobectomy was indicated and subsequently performed.
Due to the clinical stage IIB the adjuvant chemotherapy was administered. The discussion engages in the pulmonary function tests before the lung resection.