[A resected case of pulmonary plasma cell granuloma infiltrating the pericardium].

The patient was a 66-year-old man. An abnormal mass on his chest X-ray was pointed out during a regular check-up in November 1991. He was admitted to our hospital with the chief complaint of productive cough in January 1992. With the diagnosis of lung cancer, right middle and lower lobectomy with lymph node resection and partial resection of the pericardium was carried out. The pathological examination revealed pulmonary plasma cell granuloma infiltrating the pericardium. Postoperative course was uneventful. No recurrence was seen 17 months after operation. As pulmonary plasma cell granuloma is histologically benign, this was a very rare case with extra-pulmonary extension. Up to present, only 8 cases including this case has been reported in the literature. We reviewed these 8 cases.