Intracardiac pheochromocytoma with dual coronary blood supply: case report and literature review.

An intracardiac pheochromocytoma is extremely rare. This patient first presented postpartum at age 28 with clinical signs, symptoms and biochemical evidence suspicious for the diagnosis of pheochromocytoma. Multiple radiologic studies and laparotomy failed to confirm the diagnosis.

Spectroscopy of the isolated rabbit heart: effects of perfusion with oxygenated crystalloid cardioplegia at 4 degrees C and 20 degrees C.

Factors that limit survival of explanted cardiac allografts include intracellular acidosis and loss of high energy phosphates. This study was undertaken to determine if these processes could be retarded by specific interventions during organ storage and to determine the capabilities of phosphorus-31 (31P) nuclear magnetic resonance spectroscopy to monitor these intracellular changes noninvasively. Thirty-six excised rabbit hearts were studied in six groups according to the storage temperature and conditions of their perfusion: nonperfused, aerated perfusate or oxygenated perfusate, each at 4 degrees C and 20 degrees C.

Deposits of crystalline material containing silicon in surgically excised human valves.

Ninety-seven surgically excised natural cardiac valves were examined by scanning electron microscopy and x-ray energy spectroscopy to assess the occurrence of crystalline deposits that contain the element silicon. Valves examined included 33 mitral valves, 63 aortic valves, and 1 tricuspid valve. To reduce the possibility of surface contamination, the deep layers of some valves were examined after exposure by fracture of the valve.

Role of brachytherapy in the management of pulmonary and mediastinal malignancies.

Brachytherapy, the permanent or temporary implantation of radioactive sources, has been performed in limited numbers of patients with lung cancer over the last 50 years. Because of renewed interest in this modality, we reviewed our experience with 103 patients treated over a 7-year period. The mean age of this group was 55.

Can computed tomography of the chest stage lung cancer? Yes and no.

To determine the accuracy of computed tomography (CT) of the chest in the staging of lung cancer, we studied 418 patients with primary pulmonary carcinoma between 1979 and 1986. Each had a preoperative scan performed before detailed operative staging. Each CT scan was analyzed for components of the current TNM staging system.