Chronic granulomatous disease and McLeod syndrome in a black child.

A 3-year-old black male child with X-linked chronic granulomatous disease and red cells of the rare McLeod phenotype is presented. The red cells showed acanthocytosis and did not react with anti-KL. Similarly the leukocytes were nonreactive with anti-Kx. The Xk and Xg linkage could not be investigated since all members of his family were Xg (a+).