Preferred Label : Immunoglobulin Heavy Chain Deletion;
NCIt definition : A disorder that affects the production of complete immunoglobulins. Deletions in the
heavy chain genes on chromosome 14 disrupt the synthesis and secretion of properly
functioning antibodies resulting in monoclonal populations of truncated heavy chains
without covalently bonded light chains. Such deletions have been implicated as playing
a significant role in several diseases including leukemias, lymphomas and myelomas.;