Appendix
Characteristic Feature:
- Presence of lymphoid tissue mass in mucosa and submucosa, similar to Peyers Patches of Intestine.
- It’s morphology is similar to that of Colon with some modifications like muscularis externa forms a continuous coat.
- Less developed intestinal glands.
- Abundant diffused lymphatic tissue.
Important labels:
- Lymphatic Nodules (may extend to the submucosa)
- Mocosa
- Lining Epithelium (Simple Columnar) with Goblet Cells
- Intestinal Glands (Crypts of Lieberkühn)
- Lamina Propria
- Submucosa (rich in blood vessels)
- Muscularis Mucosa (myenteric plexus between inner and outer layers)
- Serosa (with underlying adipose tissue)