E2590. Imaging Features of Retroperitoneal Sarcoma With Pathological Correlation
Authors
Ahmed Sobieh;
University of Kentucky
Emily Tiwana;
University of Kentucky
Derek Allison;
University of Kentucky
Background
Soft tissue sarcomas are malignant tumors of mesenchymal origin that originate from the soft tissues. Liposarcoma is the second most common type of soft-tissue sarcoma, that represent 10% - 35% . There are 5 distinct histologic subtypes of liposarcoma: well differentiated, dedifferentiated, myxoid, pleomorphic, and mixed type.
Educational Goals / Teaching Points
Describe the radiologic spectrum of intraabdominal liposarcoma. Recognize the pathologic basis of the radiologic features of liposarcoma in the abdomen and pelvis. Discuss the radiologic manifestations that may allow differentiation of the various types of liposarcomas and their implications on diagnosis, treatment, and prognosis.
Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
In this exhibit, we will discuss imaging features and pathological features of undifferentiated pleomorphic sarcoma, dedifferentiated liposarcoma, grade 3 arising from well-differentiated liposarcoma, low grade endometrial stromal sarcoma, leiomyosarcoma, well-differentiated liposarcoma and differentiated liposarcoma, solitary fibrous tumor.
Conclusion
It is crucial for radiology trainee to understand and recognize the spectrum of appearances of the various types of sarcoma in the abdomen and pelvis, which reflect their underlying pathologic characteristics, improves radiologic assessment and is important for optimal patient management.
