Light chain deposition disease
Type of disease: Rare conditions
Light chain deposition disease involves our immune system. It is caused by an excess buildup of immunoglobulin light chain in our tissues and organs. Immunoglobulins, also known as antibodies, are special proteins made by immune cells. While an important part of our immune system, if these proteins become trapped in the tissues of the kidneys, lungs, skin, joints, or blood vessels, they can set off reactions that lead to tissue or organ inflammation (swelling) and damage. Early signs and symptoms of light chain deposition disease may include protein in the urine, high blood pressure, decreased kidney function, and nephrotic syndrome. Light chain deposition disease is often associated with multiple myeloma, monoclonal gammopathy of undetermined significance, or other disorders of abnormal overgrowth of lymph nodes. Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.