图4. (A)多形性腺瘤低倍观,可见此前细针穿刺所致改变;(B)中央梗死区;(C)周围的鳞状化生;(D)间质反应性梭形细胞增生;(E)肿瘤细胞呈怪异表现的多形性腺瘤。未完待续参考文献Hernandez-Prera JC, Skálová A, Franchi A, et al. Pleomorphic Adenoma: The Great Mimicker of Malignancy. Histopathology. 2020;10.1111/his.14322. doi:10.1111/his.14322