case_images: PMC3101732_01
case_images: Solid and gray-white mass with myxoid areas.
case_images: ASM-31-83-g001.jpg
case_images: PMC3101732_01_ASM-31-83-g001.jpg
case_images: F0001
case_images: In the second case, the lesion measured 15x10x8 cm and was solid and gray-white, and had myxoid areas (Figure 1).
case_images: Spindle-shaped cells having a fascicular and vaguely storiform pattern (hematoxylin and eosin, x10).
case_images: ASM-31-83-g002.jpg
case_images: PMC3101732_01_ASM-31-83-g002.jpg
case_images: F0002
case_images: Microscopic examination in both cases revealed well-circumscribed tumors composed of spindle-shaped, bland-looking cells having a fascicular and a vaguely storiform pattern (Figure 2).
case_images: Exceedingly myxoid stroma (hematoxylin and eosin, x40).
case_images: ASM-31-83-g003.jpg
case_images: PMC3101732_01_ASM-31-83-g003.jpg
case_images: F0003
case_images: In other areas there was extensive stromal hyalinization, with a paucity of neoplastic cells, and in yet others, the stroma was exceedingly myxoid (Figure 3), with widespread separation of the neoplastic cells.
case_images: Myxoid zones composed of bland spindled cells with delicate branching-to-curvilinear vessels (hematoxylin and eosin, x10).
case_images: ASM-31-83-g004.jpg
case_images: PMC3101732_01_ASM-31-83-g004.jpg
case_images: F0004
case_images: In the myxoid zones, the tumor was composed of bland spindled-to-stellate cells in a myxoid-to-lightly collagenized stromal background, often with associated curvilinear-to-branching prominent vasculature (Figure 4).
case_images: Spindled stroma punctuated by large collagen rosettes (hematoxylin and eosin, x10).
case_images: ASM-31-83-g005.jpg
case_images: PMC3101732_01_ASM-31-83-g005.jpg
case_images: F0005
case_images: The spindled stroma was punctuated by large collagen rosettes ringed by nuclei (Figure 5).
case_images: S-100 positivity in the rounded cells present in the cellular cuff of the giant rosettes (hematoxylin and eosin, x40).
case_images: ASM-31-83-g006.jpg
case_images: PMC3101732_01_ASM-31-83-g006.jpg
case_images: F0006
case_images: S-100 was frequently positive in the rounded cells (Figure 6).