副乳是临床上比较常见的一种乳腺发育畸形,但副乳癌在临床上极少见。由于副乳在日常检查中易被忽略,其发展时间相对较长,肿瘤的发病率又较低,故副乳癌早期诊断较困难,常造成临床误诊、误治,现就我科收治的1例副乳癌的临床资料并结合文献复习,分析如下。1病例资料患者女性,59岁。因“发现左侧腋窝下包块20年,疼痛1月”入院。病程中,患者左腋下包块无明显增大,无疼痛,月经期无异常不适,近一月来自觉局部刺痛渐加重,曾抗炎治疗 Furu was a more common clinical development of breast deformity, but the deputy breast cancer is extremely rare in clinical practice. Since the common milk in the routine examination is easily overlooked, its development time is relatively long, the incidence of cancer is low, so the early diagnosis of paraneoplastic more difficult, often resulting in clinical misdiagnosis, mistreatment, now our department treated 1 case Deputy breast cancer clinical data and literature review, analysis is as follows. 1 case information patient female, 59 years old. Because “found the left axillary mass 20 years, pain January” admitted. Course of disease, the patient left axillary mass was no significant increase, no pain, no abnormal menstrual discomfort, feeling partial pain in recent months gradually aggravating, had anti-inflammatory treatment