COPD coughing up blood. Abnormal shadow on X-Ray.
Bronchoscopy would be needed to determine the nature of the chest X-Ray abnormality.
Fat? no idea and it doesn't even ring a bell.
More likely the "fat" is a lymph node......just a guess.
No I do't think that the doctor would have mentioned the "C" word even if he suspected it.
You will have to wait for the result of the bronchoscopy, but if it is any consolation, cancer is NOT the commonest cause of coughing up blood in COPD



