In the present case, the resection specimen definitely showed islands of metaplastic bone superficial to the muscularis propria, thus excluding sacral invasion.
此例中，切除的标本中很明确的显示出固有肌层浅表的岛状化生骨，因此可以排除骶骨侵犯。
In the present case, the resection specimen definitely showed islands of metaplastic bone superficial to the muscularis propria, thus excluding sacral invasion.
此例中，切除的标本中很明确的显示出固有肌层浅表的岛状化生骨，因此可以排除骶骨侵犯。
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