zd40 copy.JPG (123892 bytes) 40.Here is a moderately differentiated squamous cell carcinoma in which some, but not all, of the neoplastic cells in nests have pink keratin. In general, neoplasms with less differentiation are more aggressive.

40.图示一中分化鳞癌,仅部分癌细胞巢状排列,有粉红色的角蛋白。一般来说,低分化的肿瘤更富于侵袭力。