[Clinical features, diagnosis and surgical treatment of solitary air cysts of the lungs].

86 cases of solitary air cysts of the lung (6.83% of all maldevelopments) were analyzed. This maldevelopment of bronchial tree is found most often in men (10:7) and more often in the right lung than in the left (18:13).

[Abnormalities of the pericardium].

By 2000 there have been at least 187 cases of rare pericardial malformations (of them there were 5 cases of the authors) and 1047 cases of celomic pericardial cysts (CPC) (43 cases of the authors) in the literature. Of them 18 (9.6%) patients were found to have no pericardium, the absence of its left half was in 76 (40.

[Surgery of some diaphragm diseases].

The authors analyze 127 rare diaphragm diseases. Among them, the rate of true diaphragmatic hernias does not exceed 1%. The congenital through diaphragm defects were encountered three times more often than false hernias, equally frequently on the left and on the right.

[Spontaneous pneumomediastinum].

The authors present 7 cases with spontaneous pneumomediastinum (SPM), a rare pathological condition. The cause of SPM is rupture of marginal alveoles and spread of air into the mediastinum through perivesical and peribronchial fats. Males are more frequently affected, but females were prevalent in this study (as 4:3).