Given the task definition and input, reply with output. Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

Abstract: We report a rare case of supra- and infratentorial arteriovenous malformations (AVMs), which were separate and consisted of aneurysmal dilations with two or three afferent arteries and efferent veins. Surgical resections were performed without the occurrence of additional neurological deficits. We discuss the treatment of multiple AVMs and stress that size and the structures involved are more important factors in the prognosis than the multiplicity of the lesions.
Which is the apt title for the abstract? option1: Supra- and infratentorial arteriovenous malformations with an aneurysmal dilatation: a case report. option2: Lipoprotein mutations in pigs are associated with elevated plasma cholesterol and atherosclerosis.
Supra- and infratentorial arteriovenous malformations with an aneurysmal dilatation: a case report.