Autoimmune lymphoproliferative disease (ALD) is a rare familial disorder. C
linical and laboratory features of this disease include a generalized lymph
adenopathy, splenomegaly, increased levels of circulating CD3+ with low lev
els of CD4+, CD8+ T-cells, and autoimmune phenomena, characteristics that t
he autoimmune lymphoproliferative syndrome (ALPS) have in common. Treatment
usually consists of different supportive therapies. We report on the case
of a young man affected by ALD who became resistant to steroids and was unr
esponsive to cyclosporine. Nevertheless, he was successfully treated with i
nterferon (IFN)-alpha, resulting in a long-lasting, clinically complete rem
ission.