PMID- 20930031 OWN - NLM STAT- MEDLINE DCOM- 20110222 LR - 20101108 IS - 1758-1001 (Electronic) IS - 0004-5632 (Linking) VI - 47 IP - Pt 6 DP - 2010 Nov TI - Monoclonal free light chains can be found in heavy chain diseases. PG - 570-2 LID - 10.1258/acb.2010.010146 [doi] AB - Heavy chain diseases (HCDs) are rare B-cell lymphoproliferative neoplasias characterized by the production of a monoclonal component consisting of a truncated monoclonal Ig heavy chain without the associated light chain. Among them, patients with gamma-HCD are so rare that no more than 150 cases can be found in the literature. In this paper, we report one additional case: an 83-year-old man with a gamma-HCD, in whom a kappa light chain component was detected in the serum by using the serum free light-chain assessment and in addition monoclonal kappa cytoplasmic expression was detected in bone marrow plasma cells by flow cytometric analysis. In the work-up of the patient, the underlying anatomopathological lymphoproliferative disease corresponded to a lymphoplasmacytic lymphoma, as it is stated in the current World Health Organization classification (2008), with both lymphadenopathic and bone marrow infiltration. As in other cases, several autoimmune manifestations (antiphospholipidic syndrome and immune thrombocytopenia) were present during the course of the disease in this patient. This case report illustrates a new case of gamma-HCD, in which serum free light-chain analysis and flow cytometry represented a valuable tool for diagnosis, a finding that could be very important for the future management of these patients. FAU - Lopez-Anglada, L AU - Lopez-Anglada L AD - Haematology Department, University Hospital of Salamanca, Paseo San Vicente 58-182, Salamanca, Spain. FAU - Puig, N AU - Puig N FAU - Diez-Campelo, M AU - Diez-Campelo M FAU - Alonso-Ralero, L AU - Alonso-Ralero L FAU - Barrena, S AU - Barrena S FAU - Aparicio, M A AU - Aparicio MA FAU - Gutierrez, N C AU - Gutierrez NC FAU - Garcia-Sanz, R AU - Garcia-Sanz R LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101007 PL - England TA - Ann Clin Biochem JT - Annals of clinical biochemistry JID - 0324055 RN - 0 (Immunoglobulin gamma-Chains) SB - IM MH - Aged, 80 and over MH - Flow Cytometry MH - Heavy Chain Disease/*blood/*diagnosis MH - Humans MH - Immunoglobulin gamma-Chains/*blood MH - Male EDAT- 2010/10/12 06:00 MHDA- 2011/02/23 06:00 CRDT- 2010/10/09 06:00 PHST- 2010/10/09 06:00 [entrez] PHST- 2010/10/12 06:00 [pubmed] PHST- 2011/02/23 06:00 [medline] AID - acb.2010.010146 [pii] AID - 10.1258/acb.2010.010146 [doi] PST - ppublish SO - Ann Clin Biochem. 2010 Nov;47(Pt 6):570-2. doi: 10.1258/acb.2010.010146. Epub 2010 Oct 7.