The growth is primarily exophytic ( outward into the lumen ) and invasion is not seen at this point 生长最初是外生性的(朝向腔内) ,不见浸润。
This panoramic low power iew shows how inerted papillomas can often create an exophytic mass 断层面在低倍镜下可清楚显示内翻性乳头状瘤是如何形成外生性肿块的。
This irregular reddish , ulcerated exophytic mid - esophageal mass as seen on the mucosal surface is a squamous cell carcinoma 不规则微红色外生性溃疡,位于食管中段粘膜表面的的肿块是鳞状细胞癌。
Here is another example of an adenocarcinoma of colon . this cancer is more exophytic in its growth pattern . thus , one of the complications of a carcinoma is obstruction ( usually partial ) 结肠腺癌,呈外生性生长,因此梗阻就成了它的一个并发症(通常是部分性梗阻) 。