Fig. 4

Hematoxylin and eosin-stained sections of the tumor. A Spindle-shaped cells and hyperchromatic nuclei segregated by abundant myxomatous stroma. Hemosiderin pigmentation and the presence of erythrocytes in the myxoid matrix indicated chronic and fresh bleeding (bar = 100 µm). B The myxomatous capsule right above the multiple hemorrhages was extremely thin (square) (bar = 2500 µm). The inset shows a thin capsule under high magnification (bar = 500 µm). Arrows indicate hemorrhages