There are several literature data examples reporting on such interferences in CRP and other tests; there also exists reports on a case with malignant lymphoma with paraproteinemia of monoclonal IgA-κ and another with chronic viral hepatitis type C with type II cryoglobulinemia composed of monoclonal IgM-κ and polyclonal IgG, which have been revealed to cause falsely elevated CRP test results [1176]. Here, CRP is linked to cryoglobulinemia.