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在同一患者体内出现多种原发性癌称为重复癌(multiple primary carcinoma,MPC)~[1]。乳腺癌和肺癌分别是女性恶性肿瘤发病率和病死率的头号和二号杀手,临床上同一患者同时或异时患有这两种恶性肿瘤较为少见。对于乳腺癌在前、肺癌在后的重复癌,临床往往容易诊断为乳腺癌肺转移,治疗策略也从乳腺癌角度考虑,部分重复癌就会延误治疗。通过免疫组化不难鉴别Lunimal型乳腺癌肺转移和原发性肺癌,而临床鉴别三阴乳腺癌合并肺部转移
Multiple primary carcinomas occur in the same patient as multiple primary carcinoma (MPC) ~ [1]. Breast cancer and lung cancer are respectively the number one and number two killer of the incidence and mortality of malignant tumors in women. It is rare that both malignant tumors are simultaneously or abnormally present in the same patient in clinic. For breast cancer in the former, the subsequent lung cancer recurrence, the clinical diagnosis of breast cancer is often easy to lung metastasis, treatment strategies from the perspective of breast cancer, some of the repeated cancer treatment will be delayed. Immunohistochemistry is not difficult to identify Lunimal breast cancer lung metastases and primary lung cancer, and clinical identification of triple negative breast cancer with pulmonary metastasis