[Spontaneous acute subdural hematoma and primary thrombocytosis in infants. Clinical case].

Acute subdural hematoma in infancy and childhood is relatively rare, causes being both traumatic and atraumatic. This is a case of an infant with spontaneous acute hemorrhage, convulsion and transient idiopathic platelets elevation. A search in the literature revealed it is one of few cases of Primary Thrombocytosis of the infancy up to date described. The association between thrombocytosis and central nervous system disease is remarked.