Phœochromocytomas have many pathological and clinical features of interest. The present case report concerns a patient with two tumours, one of which was present in the middle mediastinum. This is only the second time that such an occurrence has been reported. Only one of the tumours (that in the right adrenal gland) secreted adrenaline, and difficulty was experienced in localising the mediastinal tumour. It was found that direct adrenal venous sampling proved misleading for purposes of localisation.
Obstructive coronary artery disease is in many patients a disease of the proximal arteries. Saphenous vein bypass grafts have been satisfactorily performed into vessels of diameters of 2.5 mm and above. A certain proportion of patients exist, however, in whom the only vessels available for grafting are of diameters of less than 2 mm. The purpose of this study was to test the feasibility of performing internal mammary to coronary artery anastomosis in the dog in vessels of diameters of 1-2 mm, using the operating microscope The study indicates that it is technically possible to perform these anastomoses with an acceptable immediate patency rate.
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