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Congress: ECR24
Poster Number: C-20153
Type: EPOS Radiologist (educational)
Authorblock: B. Batiashvili, N. Sainishvili; Tbilisi/GE
Disclosures:
Beka Batiashvili: Nothing to disclose
Nikoloz Sainishvili: Nothing to disclose
Keywords: Abdomen, Musculoskeletal soft tissue, CT, MR, Biopsy, Imaging sequences, Neoplasia
Learning objectives Review the clinical presentation and demographics of liposarcoma. Understand imaging patterns. Differentiate tumors that can mimic the appearance of liposarcomas.
Read more Background Liposarcoma is a heterogeneous group of soft tissue sarcomas originating from adipose tissue. They are the second most common soft tissue sarcomas, with various histological subtypes and imaging characteristics. They typically manifest as painless, slow-growing soft tissue masses and can affect individuals across a wide age range, predominantly occurring in middle-aged and older individuals depending on the histological subtype, without significant gender predominance. They are extremely rare in children. Liposarcoma most commonly arise in the extremities, retroperitoneum, and abdomen. Clinical...
Read more Findings and procedure details The Imaging features are different depending on the histological subtype.Computed tomography (CT) is widely used for the initial evaluation of liposarcomas. On non-contrast CT scans, liposarcomas typically appear as well-defined soft tissue masses with varying degrees of fat attenuation due to their adipose tissue origin. The presence of mature adipose tissue within the tumor manifests as regions of low attenuation (< -30 Hounsfield Units) on CT images. However, some liposarcomas may contain non-adipose components, leading to heterogeneous attenuation patterns. Higher-grade...
Read more Conclusion CT and MRI imaging, with different sequences, provide essential information about lesion features, spread, and communication with surrounding tissues, enabling appropriate surgical treatment. Imaging features can strongly suggest a diagnosis of liposarcoma, but histopathological examination remains the gold standard. Distinguishing liposarcoma from other soft tissue tumors is important for treatment planning.
Read more References https://radiopaedia.org/articles/liposarcoma?lang=us https://radiopaedia.org/articles/pleomorphic-liposarcoma?lang=us https://radiopaedia.org/articles/myxoid-liposarcoma?lang=us https://radiopaedia.org/articles/dedifferentiated-liposarcoma?lang=us https://radiopaedia.org/articles/well-differentiated-liposarcomaatypical-lipomatous-tumour-1?lang=us https://www.ajronline.org/doi/10.2214/AJR.10.5824 https://www.sciencedirect.com/science/article/pii/S1877056810001751 https://www.ajronline.org/doi/pdfplus/10.2214/AJR.10.5824  
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