Spanish Registry of Patients With Diagnosis of IgM-MGUS, Asymptomatic & Symptomatic Waldenström Macroglobulinemia. Analysis of Clinical and Laboratory Features, Treatment and Outcomes.
Methods: The investigators will collect data from the patient clinical files after prior Informed Consent providing from patients with diagnosis of MGUS-IgM and WM in the past 30 years in Spain, according to the WHO classification of lymphoid tumors (2008) revised in 2016. Data from patients not able to provide IC (i.e., already dead patients) will be included only after the permission of the ethics review board. The collected data will be included in a database of the Spanish Myeloma and Lymphoma Intergroup (SMALI) team created ad-hoc by the Spanish Society of Hematology and Hemotherapy (SEHH). Each principal investigator in each center will conduct their technical supervision. The evaluation of the treatment protocols will be done following the indications of the intergroup committee according to the guidelines of the International Waldenström's Macroglobulinemia Group.
• Age ≥18 years
• Patients having a confirmed diagnosis of either in the las 30 years:
• Monoclonal Gammopathy of uncertain significance -IgM
• Asymptomatic Waldenström's macroglobulinemia
• Symptomatic Waldenström's macroglobulinemia