According to the work of Gardner,1 Leary,2 Voris3 and others, the source of hemorrhage in subdural hematoma of the chronic variety is usually at the point where the central veins enter the longitudinal sinus. Blows in the anteroposterior plane are prone to produce a shearing effect on these vessels, rending them from their insertion in the sinus and permitting the escape of venous blood into the subdural space. While this explanation holds good for the vast majority of adult subdural hematomas, it is somewhat less valid as the cause of the infantile subdural hematoma.
Sherwood4 first called attention to the clinical symptoms and findings of subdural hematoma in infants and reported 9 cases with only 1 death. He considered the causation "obscure." Ingraham and Matson,5 in one of the finest presentations on subdural hematomas in infancy yet published, discussed the pathologic aspects of the lesion
WILLIAMS JM. MULTIPLE SUBDURAL HEMATOMAS IN AN INFANT. AMA Am J Dis Child. 1950;80(6):970–974. doi:10.1001/archpedi.1950.04040020985010
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