Concurrent monoclonal gammopathy and systemic lupus erythematosus in a known case of ulcerative colitis: A case report.

Our patient had previously been diagnosed with Ulcerative colitis. The clinical manifestations of the patient along with laboratory tests such as anti-dsDNA and proteinuria were also positive. Therefore, the clinical manifestation was consistent with SLE. In the following work up, monoclonal gammopathy in serum electrophoresis was also detected.