[Abdominal localization of invasive thymomas. Contribution of tomodensitometry].

Routine abdominal and thoracic computed tomography examinations in 20 patients with invasive lympho-epithelial thymomas demonstrated the frequency of abdominal localizations (9 cases), particularly in renal (7 cases) and adrenal (3 cases) tissues. The mode of extension and course during treatment of these tumors are discussed, and the different diagnostic procedures, particularly ultrasonography, are compared.