Documented rupture of venous aneurysms associated with arteriovenous fistulas is uncommon, and reports of the formation and rupture of venous aneurysms that are not associated with fistulas are distinctly rare. One case is presented in which spontaneous rupture of a saccular aneurysm on a vessel draining an arteriovenous fistula produced an intracerebral hematoma. A second case in described in which fatal intracerebral hemorrhage was produced by a traumatic aneurysm of an otherwise normal superficial cerebral vein.
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Tyson et al. (1978) studied this question.
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