Diseases of the lymphatic system are broadly classified into blockages, infections and cancers, and include specific diseases such as lymphedema and lymphadenitis, states the Merck Manuals. Castleman disease and different types of lymphomas are other disorders of the lymphatic system, states Cancer.org.
Lymphedema is the result of compression or obstruction of lymphatic vessels, which leads to swelling due to the accumulation of lymph in tissues, states the Merck Manuals. Although it can be controlled, there is no cure for this condition.
Lymphomas are cancers that affect the lymphatic system, states Cancer.org. Castleman disease is a lymphoproliferative disorder indicating an abnormal growth of cells in the lymph system. It often progress into lymphomas.