My 92 Year Old Father, Who Smoked For 75 Years,

My 92 year old father, who smoked for 75 years, has been diagnosed with three tumors in the upper right lobe of his right lung. A biopsy was not recommended because of the location, his age, and because he has an cardiac aneurysm. He has been vomiting phlegm. Is that part of the lung "cancer"? What we suppose to be cancer has progressed rapidly. He has lost 25 pounds (his heaviest was 120) in about four months (10 pounds in the last 6 weeks).