The histopathological and pathological characteristics of the patient’s parapharyngeal liposarcoma, as analyzed by CT examination, H&E staining and Sultan-III staining. (A) An axial image from the CT scan shows a large parapharyngeal mass of fat density. (B) A sagittal image from the CT scan shows a soft tissue mass at the midline. (C) Photomicrographs of the liposarcoma. H&E staining; scale bar = 20 μm. (D) The high level of lipid deposition in this parapharyngeal liposarcoma was visualized by sultan-III staining. The arrow indicates the mass, and the scale bar = 20 μm.