![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Appendix
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x
![Mucosa <p>The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.Tub_.LgI-10-1-ping.png)
Mucosa
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x
![- Intestinal glands <p>The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.Tub_.LgI-10-3-ping.png)
- Intestinal glands
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x
![- Diffuse lymphoid tissue <p>The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10-4A-ping-1.png)
- Diffuse lymphoid tissue
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x
![- Primary lymphoid nodule <p>The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10-4B-ping.png)
- Primary lymphoid nodule
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x
![- Secondary lymphoid nodule <p>The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x</p>](https://digitalhistology.org/wp-content/uploads/2024/04/Or.Dig_.Tub_.LgI-10-5-ping.png)
- Secondary lymphoid nodule
The mucosa of the appendix resembles that of the colon; straight intestinal glands are located in the lamina propria; villi are not present. Abundant diffuse and nodular lymphoid tissue infiltrate the appendix. 400x