Explain Betice Jones Protein - abnormal constituent of urine

Betice-Jones Protein: Bence-Jones proteins are the small proteins (dimers of iminunoglobuljn light chains) normally produced by the plasma cells and are found in the urine. Bence-Jones proteins are sufficiently small to be excreted by the kidney. Persons suffering from multiple myeloma (a tumor of the bone marrow, usually malignant), leukemia (cancer of the blood) and Hodgkin k disease (a cancer in the lymphatic system) excrete large amount of protein in urine called Bence-Jones protein.