Pneumocystis carinii pneumonia as the presenting infection in congenital hypogammaglobulinemia.
D000361:Agammaglobulinemia / Q000150:complications / Q000151:congenital* / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008297:Male; D011020:Pneumonia, Pneumocystis / Q000209:etiology*