With colonic involvement, perirectal fistulae are common.

累及结肠的直肠周瘘管常见.

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Tentorial dural arteriovenous fistulae are rare clinically.

小脑幕脑膜动静脉瘘临床上比较少见.

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Objective To explore the angiographic appearances of the hemodynamic change of spinal dural arteriovenous fistulae ( SDAVF ) .

目的探讨硬脊膜动静脉 瘘 血液动力学改变的血管造影表现.

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