A 75-year-old man was admitted to our hospital because of severe dyspnea and pollakiuria in October 2001. We diagnosed his illness as carcinomatous pericarditis caused by the recurrence of primary lung cancer and prostatic hypertrophy. He had undergone surgery for gastric cancer in 1986, and for lung cancer in 1996. Furthermore, he had been treated for hepatocellular carcinoma in 1997. He finally died in February 2002 of respiratory failure due to the carcinomatous lymphangitis that followed the lung cancer. After autopsy, a microscopic view of the prostate revealed that he had prostatic carcinoma. Such a case is rare.