Contrast clearly demonstrates the extent of the lesion within the nasal cavity and invasion of the ethmoidal sinus and anterior cranial fossa (red arrow in Figure 4).

增强扫描清楚的显示病变在鼻腔内的延伸并且侵犯蝶窦和前颅窝（图4，红箭）。

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Contrast clearly demonstrates the extent of the lesion within the nasal cavity and invasion of the ethmoidal sinus and anterior cranial fossa (red arrow in Figure 4).

增强扫描清楚的显示病变在鼻腔内的延伸并且侵犯蝶窦和前颅窝（图4，红箭）。

youdao