Hip and Pelvis Bone Tumors: Can You Make It Simple?

Abstract

Although it is possible for any osseous tumor or tumorlike lesion to occur in and around the hip and pelvis, there are preferential lesions. Most tumors share many imaging features with those arising elsewhere in the skeletal system, but some may show specific morphological and imaging features. Furthermore, specific criteria and rules of thumb are related to this anatomical area that radiologists should know, which together with the imaging findings and clinical context will lead to a more confident diagnosis.In this article we review the basic anatomical and imaging principles in the hip and pelvis and their diagnostic criteria, describe the most common regional benign and malignant bone tumors and pseudotumors, and highlight their main imaging features and common differential diagnosis while keep this article as relatively simple and straightforward as possible. Soft tissue tumors are beyond the scope of this article.

Detection and Characterization of Musculoskeletal Cancer Using Whole-Body Magnetic Resonance Imaging

“…Plain radiographs remain the initial imaging modality in most patients presenting with musculoskeletal (MSK) symptoms limited to a specific region. 1,3,[36][37][38] They can be used to assess disease presence, for treatment planning, and to assess the risk of bone complications such as the likelihood of fractures. For the latter, classifications systems such as the Mirels' scoring for proximal femoral fractures risk and the Spine Instability Neoplastic Score can be used.…”

“…79 WB-MRI also plays a vital role in genetic skeletal conditions such as multiple exostosis (►Fig. 11) in Maffucci's syndrome, Ollier's disease, and other cartilaginous tumors, 3,38,80 Li-Frau-meni and heritable TP53-related cancer syndromes, where there is a significant increased risk of malignant transformation (including breast carcinoma, osteosarcoma, leukemias, and adrenal adenocarcinoma) warranting regular follow-up imaging of patients. Moreover, these are young patients and throughout their life span with no added risk of radiationinduced complications.…”