A 70-year-old chronic smoker presented with haemoptysis and weight loss for 2 months. He had no fever, chills or rigor and a physical examination of both hands showed finger clubbing. There was decreased chest wall expansion and air entry over right upper chest.
Laboratory investigations were essentially unremarkable and WCC was within normal limits. A CXR was performed for further evaluation.
What abnormality can you see on this CXR and what is the radiological diagnosis ?