Between benign cystadenomas and malignant cystadenocarcinomas lies the grey zone of "borderline" lesions that are not clearly malignant, but are treated as though they could be.

良性的囊腺瘤和恶性的囊腺癌的病变界限并不十分分明。虽然病变可能并不是明显的恶性，但通常按恶性对待。

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Between benign cystadenomas and malignant cystadenocarcinomas lies the grey zone of "borderline" lesions that are not clearly malignant, but are treated as though they could be.

良性的囊腺瘤和恶性的囊腺癌的病变界限并不十分分明。 虽然病变可能并不是明显的恶性，但通常按恶性对待。

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