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Congress: ECR26
Poster Number: C-12957
Type: Poster: EPOS Radiologist (educational)
Authorblock: F. Stoica1, S. L. Ghiea2; 1Timisoara/RO, 2Bucharest/RO
Disclosures:
Felicia Stoica: Nothing to disclose
Sorin Lucian Ghiea: Nothing to disclose
Keywords: Bones, Musculoskeletal system, CT, MR, Structured reporting, Technical aspects, Cancer, Haematologic diseases
Learning objectives To present a step-by-step imaging approach of bone tumours for junior radiologists, providing the essential knowledge for achieving an accurate imaging diagnosis for the most commonly encountered tumours.To review the key imaging features of these lesions by correlating their appearance across multiple imaging modalities, including Magnetic Resonance Imaging (MRI), X-ray and Computed Tomography (CT).To provide a brief illustration of several less encountered bone tumours.
Read more Background Bone tumours represent a heterogeneous group of diseases from both an epidemiological and histopathological perspective, and they can be broadly classified as:(1) primary or secondary: primary bone tumours are overall rare, with secondary metastatic lesions being far more prevalent;(2) benign, intermediate or malignant: depending on the histopathological features and biological behaviour of the tumour, with the WHO classification of bone tumours serving as a reference guide. [fig 1] Regarding imaging techniques, despite technological advances, radiography remains the preferred initial investigation for suspected...
Read more Findings and procedure details When faced with a bone tumour, one can consider several aspects in a step-by-step approach to increase diagnostic accuracy. [fig 3] Recognition of the characteristic imaging findings is fundamental: a nidus with surrounding sclerosis in osteoid osteoma (if <2cm), "rings and arcs" calcifications in chondromas and chondrosarcomas, a "ground-glass" appearance in fibrous dysplasia and permeative bone destruction in Ewing sarcoma and lymphoma. Furthermore, being aware of tumour mimics and atypical features is also necessary and can make a difference in certain...
Read more Conclusion A systematic approach to bone tumours is essential for a proper imaging diagnosis, identifying "don't touch" lesions, and determining when additional studies or monitoring are needed, all aimed at improving patient care.
Read more References Pattamapaspong N, Peh WC. Benign incidental do-not-touch bone lesions. Br J Radiol. 2023 https://radiologyassistant.nl/musculoskeletal/bone-tumors/differential-diagnosis Saran S, Phulware RH. World Health Organization classification of bone tumors (fifth edition): What a radiologist needs to know? Indian J Musculoskelet Radiol 2022 Waldt, S. (2016). Primary and Secondary Bone Tumors. In: Vogl, T., Reith, W., Rummeny, E. (eds) Diagnostic and Interventional Radiology. Springer, Berlin, Heidelberg. Hosseini et al. BMC Cancer (2025) 25:321 https://doi.org/10.1186/s12885-025-13720-0 Ramses Forsyth, Pancras C.W. Hogendoorn, Chapter 2 - Epidemiology of primary bone tumors and economical aspects...
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