Dynamic 18F-fluorodeoxyglucose positron emission tomography/CT in hibernoma: Enhanced tracer uptake mimicking liposarcoma

Figure 1 Computed tomography and magnetic resonance imaging. A: Computed tomography (upper row) and fused positron emission tomography/CT (PET/CT) (lower row) images of the retroperitoneal tumor; B: Magnetic resonance imaging (upper row), CT (middle row) and fused positron emission tomography/CT (PET/CT) (lower low) images of the tumor located in the left upper arm. Magnetic resonance imaging demonstrates a well-circumscribed mass without infiltration of the surrounding tissues. CT reveals a fat-equivalent mass, while PET/CT demonstrates intense fluorodeoxyglucose accumulation in the tumor area. CT: Computed tomography.