Endocrine Abstracts

To date, magnetic resonance tomography is generally considered the imaging method of choice for its premium resolution of lesions and surrounding anatomic structures. This is mainly due to the improved soft tissue contrast this method offers. Other advantages are the possibility of direct multiplanar imaging in sagittal, coronal, and axial orientations and the avoidance of ionizing radiation. The goal of all imaging studies in this region is to indicate precisely the location, extent, and size of a sella region tumor. These features, along with signal characteristics, frequently not only allow us to determine the presence of a lesion but also indicate the nature of the lesion. For this purpose, its extension in relation to the various surrounding structures, its structure, and its enhancement pattern must be recognized in order to help in differential diagnosis and in treatment planning. A proper set of images is required. A stepwise analysis of the images is suggested. For various types of lesions, typical examples are shown. In this context, monitoring of treatment effects is shown by using repeat imaging with comparable data acquisitions. The common artifacts are discussed as well as enhancement of depiction of minute tumours. Of course, the common features that allow differential diagnosis, are presented.