MSFinals-0900

A 23-year-old gardener experiences a sudden onset of breathlessness and right-sided chest pain while tending to the plants. He is quickly taken to the hospital, but his condition deteriorates during the examination conducted by a junior doctor.

The doctor notes a deviated trachea to the left and very faint breath sounds over the right lung. However, with the assistance of a senior doctor, the patient’s condition improves rapidly.

What is the likely diagnosis for this patient?