The Swedish Myeloma Registry is an example of a PBCR with not only high completeness and accuracy but also myeloma-specific data including pertinent diagnostic and treatment particulars: cytogenetics, M-protein isotype, bone marrow plasma cell percentage (BMPC), serum FLC, CRAB criteria (CRAB: calcium, renal insufficiency, anemia or bone lesions); first-line therapy, occurrence and date of first relapse or complications [31]. The gene discussed is MYOM2; the disease is plasma cell myeloma.