At low magnification, a colonic diverticulum has a central lumen with surrounding mucosa, while the wall (lacking a muscularis) is attenuated. The narrow neck of the diverticulum may become eroded.

• 低倍镜下,结肠憩室有内覆粘膜的中心腔,然而腔壁(因缺少肌层)是薄弱。憩室的窄颈可能会被侵蚀破坏。