从组织病理学预测肿瘤以后的发展可以谨慎小心地根据下列几项准则。良性肿瘤:主质细胞的核和胞浆很象正常同类细胞,瘤细胞形状一致,排列规则。仅有少数核分裂象,且外貌正常。瘤细胞增生完全是扩大性的,不破坏邻近组织或侵犯血管。恶性肿瘤:主质细胞和它起源的细胞迥异,核的大小及形状变化很大,通常核大而深染。核仁显著。 The subsequent development of tumors from histopathology can be carefully and carefully based on the following criteria. Benign tumors: The nucleus and cytoplasm of the main cell are much like those of normal cells. The shape of the tumor cells is the same and the rules are arranged. Only a few mitoses are present and their appearance is normal. The proliferation of neoplastic cells is completely expanded without destroying adjacent tissues or invading blood vessels. Malignancy: The main cell is different from the cell it originates from. The size and shape of the nucleus vary greatly and is usually large and dark. The nucleolus is prominent.