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Liposarcoma: A 'Beer Belly' in Disguise
Nicholas D Luke1, Alexander Gart2, Raji Mohammad3
1School of Medicine, St. George's University School of Medicine, True Blue, GRD.
Cureus
|September 19, 2022
Summary
Liposarcoma, a locally aggressive fatty tumor, can present incidentally on imaging. Diagnosis involves genetic markers like MDM2 and CDK4 amplification, with routine follow-up recommended due to high recurrence rates.
Area of Science:
- Oncology
- Genetics
- Radiology
Background:
- Liposarcoma is a soft tissue sarcoma with potential for local aggression and recurrence.
- It can arise in various locations, including the retroperitoneum, extremities, and bone.
- Tumors may grow insidiously or cause obstructive symptoms.
Observation:
- This case report details a massive liposarcoma discovered incidentally on imaging.
- The patient presented to the emergency department for unrelated lower extremity trauma.
- The incidental finding highlights the potential for asymptomatic presentation.
Findings:
- Post-operative diagnosis is confirmed by fluorescence in situ hybridization (FISH).
- Key diagnostic markers include mouse double minute 2 (MDM2) homolog protein and cyclin-dependent kinase 4 (CDK4) gene amplification.
- Recurrence rates vary by liposarcoma subtype.
Implications:
- Routine imaging every six months to a year is recommended for monitoring.
- Early detection through incidental findings can be crucial for patient management.
- Understanding diagnostic markers aids in accurate liposarcoma classification and treatment planning.
