text_1: 患者 入院 后 第 3 日 , 行 脂肪 垫 细针 穿刺 活检 , 标本 的 病理 检查 结果 未见 恶性 细胞 ; 刚果红 染色 显示 淀粉 样 蛋白 阴性 .
  
text_2: two days after the patient 's admission to this hospital , fine @-@ needle aspiration biopsy of a fat pad was performed , and pathological examination of the specimen revealed no evidence of malignant cells ; staining with Congo red was negative for amyloid .
  