An autosomal dominant condition characterized by onset in infancy of splenomegaly and polyclonal expansion of B cells, resulting in peripheral lymphocytosis. Affected individuals also show mild immune dysfunction, including some defective antibody responses and T-cell anergy. There may be a predisposition to the development of B-cell malignancy.

Name Development Level Target Family
Name Description
TCRDv4.6.9
UniProt Disease