A client's assessment findings of hoarseness and audible wheezing noted at 2-3 feet (0.61-0.91 meters); trachea deviation towards the left; breathing pattern with prolonged exhalation followed by periods of shallow breathing; tenderness and increased fremitus with light palpation on the left side of the thorax cavity's base; and an occupation history as an oil refinery plant manager for the past ten years would be indicative of which condition