Legends
Figure 1: Axial (A and B), sagittal (C), and coronal (D) post-contrast
CT: There was a large (12cm in CC axis) presacral fat attenuating mass
with internal soft tissue strands (white arrowheads in A-D). Except for
its inferior margin that blends with the perineal fat (white arrow in
B), the rest of its borders are well defined and do not show invasion to
either the distended and displaced bladder (black arrow in C) or to the
lumbosacral spine. The rectum is not visualized.
Figure 2: Hematoxylin and Eosin Staining: A (4x) and B (20x) are low and
medium power photomicrographs respectively. They showed sheets of
adipocytes admixed with lipoblasts separated by fibrous septa in an
abundant myxoid background. C is a high-power (40x) photomicrograph and
revealed variably sized lipoblasts admixed with adipocytes.