MRI IN NEONATAL DURAL SINUS THROMBOSIS

Dural sinus thrombosis in the newborn period is a rare but underrecogn ized condition which may cause seizures, macrocephaly, lethargy, and r espiratory depression. A 10-day-old term infant with no pre- or perina tal risk factors for thrombosis presented with seizures and was found to have dural sinus thrombosis on computed tomography and magnetic res onance imaging (MRI). One week later, MRI revealed partial resolution and 3 weeks later disclosed a complete resolution of the thrombosis. C linicians should consider the diagnosis of neonatal dural sinus thromb osis in infants presenting with seizures and/or increased intracranial pressure even in the absence of risk factors or when the cranial comp uted tomography is normal. MRI is the most sensitive diagnostic tool t o establish the diagnosis and permit a noninvasive follow-up, contribu ting to our understanding of the natural history, associated pathology , and prognosis of this condition.