Features. A parcel number may contain all or part of the real estate's tax account number with the local property taxing authorities. The numbers represent the physical location of the property, such as town, county and street, on the maps the assessor uses for property tax purposes.
1 Cancer. 2  If cancer cells block lymphatic vessels, lymphedema may result. 3  For instance, a tumor growing near a lymph node or lymph vessel could enlarge enough to block the flow of the lymph fluid. 4  Infection. 5  An infection of the lymph nodes or parasites can restrict the flow of lymph fluid.
Lymph capillaries converge to form larger vessels. Lymph flow is unidirectional from the tissues through lymphatic vessels, eventually dumping lymph into the vena cava. Lymph is a clear, colorless liquid with a composition similar to blood plasma. Changes in plasma composition will change lymph composition. Protein concentration of lymph is lower than in plasma, 1.5% vs. 6% for plasma.