Swollen Armpit Anatomy
Lymphatic System Anatomy
The lymphatic system performs two major functions:
- Stores and transports cells that fight infection
- Removes excess fluid from body tissues
The lymphatic system consists of:
- Lymph vessels:
- A network of vessels throughout the body that transport white blood cells called lymphocytes.
- There are two main types of lymphocytes: B-cells and T-cells.
- Lymph glands:
- The lymph vessels connect in many areas known as lymph nodes.
- The nodes act as filters to fight infection in the body.
- Lymph nodes can enlarge in response to inflammation.
- This can occur due to cancer or an infection nearby the lymph vessels.
- Areas of lymph nodes in the body
- Areas in the body where lymph nodes can be felt
- Abnormal lymph node cells due to Hodgkin's disease
- Lymphatic system around the armpit and breast
- Lymphatic system in the abdomen
- Guffey MB, Dalzell A, Kelly DR, Cassady KA. Ulceroglandular tularemia in a nonendemic area. South Med J. 2007 Mar;100(3):304-8. 
- Hsu PK, Hsu HS, Li AF, Wang LS, Huang BS, Huang MH, Hsu WH. Non-Hodgkin's lymphoma presenting as a large chest wall mass. Ann Thorac Surg. 2006 Apr;81(4):1214-8. 
- Mortimer PS. The pathophysiology of lymphedema. Cancer. 1998 Dec 15;83(12 Suppl American):2798-802.