SEER Training Modules
- Lymphoma
- Introduction
- Anatomy
- Regional Lymph Nodes
- Lymph Chains & Their Drainage Areas
- Lymph Nodes at Surface
- Deep Lymph Nodes
- Lymph Nodes of the Breast and Upper Limb
- Parietal Lymph Nodes of the Thorax
- Visceral Lymph Nodes of the Thorax
- Lymph Nodes of the Lower Thorax
- Deep Nodes of the Abdominal Cavity
- Visceral Nodes of the Abdominal Cavity
- Lymph Nodes of the Large Intestine and Lower Abdomen
- Parietal Nodes of the Pelvis
- Lymph Nodes of the Pelvis
- Lymph Nodes of the Lower Extremity
- Additional Lymph Node Chains
- Synonymous Terms
- Review
- Abstracting, Coding, & Staging
- ICD-O Site Codes
- Morphology & Grade
- Extent of Disease Evaluation
- Staging
- Abstracting Keys
- Treatment
- Hands-on Exercises
Lymphatic System
The major components of the lymphatic system are lymphatic vessels, lymph, lymph nodes, and some other lymphatic organs.
Lymphatic vessels carry lymph, a colorless liquid, throughout the body. Along lymph vessels are small bean-shaped glandular nodules called lymph nodes.
Other lymphatic organs are:
- Tonsil: clusters of lymphatic tissues just under the mucous membranes that line the nose, mouth, and pharynx.
- Spleen: it is similar to a lymph node in shape and structure but it is much larger.
- Thymus: a soft organ with two lobes that is located anterior to the ascending aorta and posterior to the sternum.
- Peyer patch: lymphoid tissue on the visceral surface of the small intestine.
