结果：3例肺肉瘤样癌均为肺内单一周围型病灶，增强CT表现为肿块边缘不规则厚片状强化或环形强化，而中央强化较弱或不明显。

Results:In all 3 cases, the lesion was solitary and peripheral. Enhanced CT showed a heterogeneous ring-enhancement and a weak or unremarkable central enhancement.

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所有肿块边缘均不规则。

All masses had irregular margin.

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头颅CT显示颅咽管瘤，在蝶鞍可见边缘不规则的大肿块，象垂体腺瘤一样压迫视交叉。

This head CT scan demonstrates a mass with irregular margins in the region of the sella. Such a mass may impinge upon the optic chiasm, just like a pituitary adenoma.

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