一种选择是进行前哨淋巴结活检术，将主要肿块和周边一到两个淋巴结切除。
They can do what is called a sentinel node biopsy. They remove the main growth and one or two lymph nodes nearest to it.
对其实施扩大局部切除术及前哨淋巴结活检术后，我们在光镜下发现了淋巴结被膜下的转移性肉瘤样成分。
The patient underwent a wide local excision and sentinel lymph node biopsy, which revealed microscopic subcapsular deposits of metastatic sarcomatoid tumor.
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