可以用更简便的直接浸润刃天青纸片法替代定量唾液刃天青纸片法。

The simpler direct soakage RD TEST can replace the quantificational saliva RD TEST.

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因此，在原发性结直肠印戒细胞癌明确诊断前必须排除其它器官的直接浸润或转移至结直肠。

Therefore, a secondary infiltration or metastasis to the colon and rectum must be excluded before a definite diagnosis of primary colorectal signet ring cell carcinoma can be established.

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附属的骨骼肌被浸润性癌累犯，直接扩散。

The attached skeletal muscle is involved by invasive carcinoma by direct extension.

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