zd41 copy.JPG (89442 bytes) 41.At high magnification, this squamous cell carcinoma demonstrates enough differentiation to tell that the cells are of squamous origin.The cells are pink and polygonal in shape with intercellular bridges (seen as desmosomes or "tight junctions" by electronmicroscopy).However, the neoplastic cells show pleomorphism, with hyperchromatic nuclei. A mitotic figure is present near the center.

41.高倍视野下见分化好的鳞癌细胞，足以证明其为鳞状细胞来源。细胞多边形，染成粉红色，有细胞间桥（电子显微镜下为桥粒或紧密连接）。但肿瘤细胞有深染的多形核。靠近中央见一核分裂相。