Fig. 4

Pathological findings. A Macroscopic findings. The tumor was encapsulated with a fibrous tissue layer. The tumor is lobular due to the fibrous septum. The length of yarrow bar is 5.0 cm. B Histopathologically, the regions where spindle-shaped cells and rounded lymphocyte-like cells proliferated were mixed. Hematoxylin–Eosin stain, × 1.25 magnification. The length of black bar is 3.0 mm