Presentation of Case First admission. A fifty-one-year-old man entered the hospital because of pain in the chest and fever.He had been well except for a chronic, mildly productive cough until ten months before entry, when there was an episode of fever, chills and sharp pleuritic pain over the lateral and anterior portions of the right side of the chest, with an increase in the cough. The symptoms subsided with penicillin therapy. Six months later the symptoms recurred for ten days, and a month before admission fever and pain in the chest again developed.He denied contact with tuberculosis . . .