Improvements in ultrasound technology have now made possible detailed visualization of fetal intracranial anatomy. Structures such as the midbrain, thalami, and lateral ventricles can be routinely imaged. Measurements of the ratio between lateral ventricular width and cerebral hemispheric width demonstrate a steady decrease from a mean of 56% at 15 wk gestation to 28% at term reflecting the relatively more rapid growth of the cerebral hemispheres as compared with the cerebral ventricles. Application of this new ultrasound data greatly facilitates accurate and consistent biparietal diameter estimations and early diagnosis of fetal hydrocephalus and other fetal cranial anomalies. This article describes the axial fetal cranial anatomy as demonstrated sonically and includes a table for normal fetal ventricular size at various gestational ages, based on evaluation of 196 normal fetuses. Some of the more common fetal cranial anomalies amenable to ultrasound diagnosis in utero are discussed.

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Kawasaki syndrome (KS) is an acute, febrile illness affecting infants and young children predominantly.' It is characterized by fever, lymphadenitis, mucosal and cutaneous inflammation, and vasculitis.2 Cardiovascular complications are common, reported in up to 55% of patient^.^ Fatalities have been reported in 1-2% of patients. Complications include coronary artery aneurysms, myocardial infarction, cerebral infarction, and widespread aneurysmal disease. A case of KS with coronary and iliac artery aneurysms and cerebral and myocardial infarction is described. CASE REPORTA 6-month-old child arrived in the emergency room with left-sided weakness and focal motor seizures. Previous history was unremarkable except for a febrile illness 3 weeks prior to admission and a second febrile illness with a desquamating rash 5 days before this admission.Cerebral computed tomography (CT) revealed a massive infarction in the distribution of the right middle cerebral artery (Fig. 1). Echocardiography was done to search for a cause for the cerebrovascular accident and revealed a dilated, poorly contractive left ventricle and coronary artery aneurysms (Fig. 2). The patient died suddenly 1 day later.Autopsy revealed aneurysms of the coronary and left internal iliac arteries, myocardial infarction with a left ventricular aneurysm, and the cerebral infarction. All these findings were

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