[Mediastinal tumours and cysts]

On 650 intrathoracic surgical interventions performed in the Ist Clinic of Surgery in Iaşi, 66 mediastinal tumours and cysts, interesting due to their variety, diagnosis and treatment problems, were recorded: 14 tumours of nervous origin, 21 mediastinal goitres, 5 dermoid cysts, 4 thymomas, 5 serous celomic cysts, 3 lipomas, 3 hydatic cysts, 4 lymphosarcomas, 3 osteochondromas, 3 pseudotumoral adenopathies, 1 pleural fibroma. In the case of a mediastinal tumour the routine intervention was explorative thoracotomy followed by exeresis of the tumour, establishment of the diagnosis and, at the same time, favourably working out the cases without postoperative morbidity and mortality.