Image IQ: 45-year old presenting with gradual abdominal swelling

Poll

Can you properly diagnose this 45-year old?

45-year-old presenting with gradual abdominal swelling.

Scanogram of the abdomen shows diffuse abdominal swelling with displacement of bowel loops displaced laterally. CT of the abdomen shows an ill-defined low density fat containing lesion occupying the entire abdomen and extending into the pelvis. Bowel loops are displaced and compressed anteriorly.

What is your diagnosis?

A. Lipoma
B. Malignant fibrous histiocytoma
C. Retroperitoneal liposarcoma
D. Fibrosarcoma

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