A Sign of Subarachnoid Bleeding on Cranial Computed Tomograms of Pediatric Head Trauma Patients

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Abstract
Of 109 children examined by cranial computed tomography soon after an acute head injury, a density in the region of the falx was identified in 24 patients, but disappeared on subsequent studies. The density measures in the range of blood and is thought to represent subarachnoid blood. It can be confused with falx calcification in adolescents and adults, but falx calcification is normally not seen in the pediatric population.