Keywords:
Neoplasia, Multidisciplinary cancer care, Metastases, Radiation therapy / Oncology, Molecular imaging, Diagnostic procedure, PET-CT, MR, Conventional radiography, Oncology, Musculoskeletal soft tissue, Hybrid Imaging
Authors:
E. Cebada Chaparro, A. M. Crespo Rodriguez, E. López Soriano, L. Escudero González, A. Ruiz Ollero, J. Arrazola García; Madrid/ES
DOI:
10.1594/ecr2018/C-0322
Methods and materials
This was a retrospective cohort study which employed 22 histological proven synovial sarcoma cases done from January 2007 until August 2017 in the radiology department of our institution.
Retrieved information included age at diagnosis,
sex,
clinical presentation,
tumor localization,
tumor size (<= 5 versus > 5cm),
histological subtype (biphasic versus monophasic versus poorly differentiated),
histological tumor grade (according to the Fèdèration Nationale des Centres de Lutte Contre le Cancer (FNCLCC) grading system),inmunohistochemical characteristics and treatment modalities.
Besides the global strategy of diagnosis,
we specifically analyzed the following imaging features: the information obtained at conventional radiology (CR) as presence of calcification,
involvement of underlying bone and aggressive bone invasion,
and that obtained at magnetic resonance (MR) imaging as calcification,
involvement of underlying bone,
bone invasion,
joint invasion,
localization of the tumor,
distance from the nearest joint (<=5 versus >5 cm),
margins,
septa,
split fat sign,
fluid-fluid levels,
hemorrhage,
necrosis,
vascularization,
heterogeneity on T1 and T2 weighted-images,
edema and enhancement after contrast material.