Microscopically, the tumor was composed of spindle cells with wavy nucleus and scattered or focal large cells which were rounded or elongated with abundant deep eosinophilic cytoplasm.Cross striations were found in few of them. Mitotic figures were scarce in the cellular areas. A, ×200; B, ×200; C, ×200; D, ×400.
Gong et al. Diagnostic Pathology 2012 7:43 doi:10.1186/1746-1596-7-43