A 49-sear-old man came to) LAG-USC Medical Center with a sixweek history o)fblood-streaked sputum. During the preceding three weeks he had lost 22 pounds in weight. He complained of general fatigue, occasio)nal occurrences offever, chills and night sweats. He had no cough, shortness of breath, abdominal pain or cramping. Three weeks before presentation he experienced diarrhea, which lasted for ...