The tumor cells hae abundant eosinophilic cytoplasm and enlarged hyperchromatic nuclei with prominent nucleoli. Numerous mitotic figures were also present.

• 肿瘤细胞富含嗜酸性细胞浆、增大深染的细胞核具有突出的核仁。也可以呈现出数目众多的有丝分裂像。