Abstract
A 3-year-old boy with the Wiskott-Aldrich syndrome has been described. In the course of study the child was found to have circulating antibodies to whole cow's milk; a peculiar cellular infiltrate in lymph nodes, spleen, and bone marrow; measles, giant-cell pneumonia, and cytomegalic inclusion disease. The patient improved on a milk-free diet, but no clear exacerbation of symptoms could be induced by milk ingestion. The combination of these clinical and pathological findings has not been reported previously in this syndrome.