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Secondary lymphoid nodule
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![Secondary lymphoid nodule <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-1-ping.png)
Secondary lymphoid nodule
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![- Germinal center <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-2-ping.png)
- Germinal center
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![- Mantle <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-3-ping.png)
- Mantle
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![Diffuse lymphoid tissue <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-4-ping.png)
Diffuse lymphoid tissue
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![Epithelium <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-5-ping.png)
Epithelium
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x
![Lamina propria <p>This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x</p>](https://digitalhistology.org/wp-content/uploads/2017/11/Or.Ly_.Tiss-5-6-ping.png)
Lamina propria
This image shows a more fully developed secondary nodule with a large germinal center. The darkly staining perimeter of the nodule, the mantle, is composed mainly of tightly packed B lymphocytes formed in the germinal center. The germinal center can be subdivided into an upper light region and a lower dark region. 200x