LAD II
Affected children are born after uneventful
pregnancies with normal height and weight. No
delay in the separation of the umbilical cord is
observed. Affected individuals have the rare
Bombay (hh) blood phenotype. Later in life, they
show severe mental retardation, short stature,
and a distinctive facial appearance. Infections
are generally not life-threatening and are usually
treated in an out-patient clinic. There is no pus
formation at the site of infection. After the age of
3 years, the frequency of infections decreases
and children no longer need prophylactic
antibiotics [17]. The hallmark of LAD II syndrome
is the deficiency in the expression of the sLeX
antigen, the selectin ligand, on leukocytes.
Neutrophilia (10,000-40,000/mm3
) is a constant
finding [18]. LAD II is also called congenital
disorder of glycosylation type IIc (CDG IIc)
syndrome.