Evans' syndrome in a child with diabetes mellitus.

A patient suffering from infantile-onset insulin-dependent diabetes mellitus is reported in whom immune pancytopenia (Evans' syndrome) developed at the age of 2 1/2 years. Hepatosplenomegaly, chronic lymphadenopathy, and elevated levels of immunoglobulins G and M were also present. The course of Evans' syndrome was fatal in this patient. The association of Evans' syndrome with other immune disorders is discussed.