The authors describe a Thai newborn boy who was presented with petechiae, hepatosplenomegaly
and pancytopenia at birth caused by congenital HIV infection. His clinical presentations were appeared on
the early onset after birth. The bone marrow finding has shown hypocellularity which was also rare in HIVinfected
children.

Keywords: Newborn, Congenital HIV infection, Pancytopenia, Petechiae