(1) Deficiency of all classes of immunoglobulins, as in agammaglobulinemia, dysglobulinemia, and immunodeficiency. This is normal for a short period in infants but should not be prolonged.
(2) A condition in which the level of immunoglobulins (antibodies) in the blood is low and the risk of infection is high.
See Also:
Hennekam Lymphangiectasia Syndrome
Pulmonary Cystic Lymphangiectasis
Lymphedema People Lymphangiectasia Forum