An increase in the accuracy of facial fracture diagnosis has been appreciated secondary to the advent of three-dimensional ct scans.

三维ct扫描技术的出现才使脸部骨折的精确诊断得以实现。

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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.

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。

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Objective To discuss the limitation of CT in the diagnosis of spinal cord injury that is secondary to thoracolumbar spine trauma.

目的探讨CT平扫诊断胸腰椎外伤后脊髓损伤的局限性。

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His legal team say his mental condition has been in remission for about 20 years, while his secondary diagnosis of narcissistic personality disorder had reduced.

BBC: Reagan shooter John Hinckley wants leave from hospital