Spontaneous intracranial bleeding in a neonate with congenital afibrinogenemia.

Congenital afibrinogenemia, a very rare autosomal recessive coagulation disorder, is characterized by undetectable and extremely low antigen levels of fibrinogen in plasma. We report a male newborn with intracranial bleeding and diagnosed as congenital afibrinogenemia in the neonatal period. All members of the family were asymptomatic.