Author:
Messiou Christina,Kunz Wolfgang G.
Abstract
AbstractRetroperitoneal (RP) masses represent a wide variety of pathologies. They can grow to a substantial size before presenting symptoms that lead to imaging work-up. They are also often detected incidentally due to increased use of cross-sectional imaging. Contrast-enhanced CT is the modality of choice, yet MRI can clarify involvement of muscle, bone, or neural foramina. 18F FDG PET/CT is not routinely indicated, however, for lesions which are inaccessible to percutaneous biopsy it can differentiate between intermediate/high-grade lesions and low grade/benign lesions. This chapter aims to describe the most common indeterminate RP masses and to highlight features which help in the differential diagnosis.
Publisher
Springer International Publishing