在20%的病例中，软脑膜血管瘤病可以是双侧性的。

The pial angiomatosis may be bilateral in 20% of cases.

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脑膜血管瘤病是一种少见、良性的错构瘤，主要累及皮质及软脑膜。

Meningioangiomatosis is a rare, benign, hamartomatous lesion involving the cerebral cortex and leptomeninges.

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目的：对比分析颅内血管外皮细胞瘤与血管瘤型脑膜瘤的MRI表现，并与病理对照。

Objective: to analyse MRI features of intracranial hemangiopericytomas and angiomatous type meningioma, and correlate with their pathology.

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目的：对比分析颅内血管外皮细胞瘤与血管瘤型脑膜瘤的MRI表现，并与病理对照。

Objective: to analyse MRI features of intracranial hemangiopericytomas and angiomatous type meningioma, and correlate with their pathology.

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