1990 Volume 51 Issue 7 Pages 1469-1473
Two cases of pericardial diverticulum were reported. Case 1 in a 62-year-old woman complained of a sensation of chest compression, in which chest X-ray and CT-scan examinations revealed a left upper mediastinal mass. Case 2 was a 32-year-old woman with an abnormal shadow in the right cardio-phrenic angle detected by chest X-ray and CT-scan examinations. She had no complaint nor symptom. In the two cases, CT-scan density was equal to that of water. Surgical extirpation carried out in these cases proved the communication between the cyst and pericadialcavity. Histologically, the two cases had the thin wall with flat meaothelium and diagnosed as pericardial deverticulum.
Pericaldeal diverticulum is a comparatively rare disease. The clinical entity of the disease was discussed in 28 cases reported in Japan, inlcuding these 2 cases treated in our hospital.
