[Computed tomography of the mediastinum in myasthenia gravis. Normal findings, thymic hyperplasia, thymomas (author's transl)]. / Computertomographie des Mediastinums bei Myasthenia gravis pseudoparalytica. Normalbefund--Thymushyperplasie--Thymustumoren.

ABSTRACT

Computed tomography of the mediastinum was performed in 45 patients with myasthenia gravis. Surgery was carried out in fourteen. Amongst these, there were four thymomas, one thymolipoma, eight thymic hyperplasias and one normal thymus gland. A further patient, who did not have surgery, probably also had a thymic tumour. The normal thymus and thymic hyperplasia cannot be distinguished on computed tomography. Differentiation of small thymomas from normal thymus is not always possible. Invasion by thymomas can only be appreciated with large tumours.