What Could Cause Sharp Pain In The Right Side Of The Chest That Increases While Breathing Deeply And While Coughing?

age 65, comes to the doctor’s office complaining of a sharp pain in the right side of his chest. He says his chest hurts when he breathes deeply or coughs. This is a problem, he says, because he has been coughing a lot, has difficulty drawing breath, and feels a tightness in the center of his chest. What condition or conditions might the doctor suspect?