1 IgG antibodies are the only type of antibody that can cross the placenta in a pregnant woman to help protect her baby (fetus). 2  IgM. 3  IgM antibodies are the largest antibody. 4  They are found in blood and lymph fluid and are the first type of antibody made in response to an infection.
Lymphedema refers to swelling that generally occurs in one of your arms or legs. Sometimes both arms or both legs swell. Lymphedema is most commonly caused by the removal of or damage to your lymph nodes as a part of cancer treatment. It results from a blockage in your lymphatic system, which is part of your immune system. The blockage prevents lymph fluid from draining well, and the fluid buildup leads to swelling.
Lymphedema may be inherited (primary) or caused by injury to the lymphatic vessels (secondary). It is most frequently seen after lymph node dissection, surgery and/or radiation therapy, in which damage to the lymphatic system is caused during the treatment of cancer, most notably breast cancer.