背景:在胚胎发生过程中,从腋前皱折到腹股沟皱折的外胚层双侧增厚,称为乳腺脊或乳线,发育成乳房组织。胸区只有一对免于消退,并不断发展为正常乳房。如果回归过程不完整,可能会导致副乳房。这些异位乳房的生理和病理改变与正常乳房相似。毫不奇怪,他们能够变成恶性。报告的病例显示副乳腺癌的最常见区域是腋窝区域。我们报告了一个罕见的肋脊上的副乳腺癌病例。
方法:我们介绍了一名51岁的亚洲妇女的案例,该妇女主诉在服用避孕药3个月的时间内,其左乳房下方肿块增大。不知道肿块可能是副乳房,主治医生开了口服避孕药.在我们的病人注意到肿块明显在增长之后,随着群众的不断增长,她决定咨询外科医生。预计是良性的,通过超声检查肿块,然后手术切除。病理报告确定肿块为异位乳腺组织癌。然而,前哨淋巴结活检显示所有四个淋巴结均无淋巴结转移。手术后,她接受了化疗,辐射,和抗激素治疗。术后随访2年,她仍然没有疾病。
结论:该患者被诊断为附属乳腺癌,表现为皮下肿块。由于这种情况非常罕见,但可以通过早期治疗治愈,当患者出现皮下肿块时,我们建议外科医生考虑潜在的恶性肿瘤.
BACKGROUND: During embryogenesis, bilateral thickening of ectoderm from anterior axillary folds to inguinal folds, called mammary ridges or milk lines, develops into breast tissues. Only a pair in the pectoral area is spared from regression and continuously develops into normal breasts. Accessory breasts can result if the regression process is incomplete. These ectopic breasts can change physiologically and pathologically similar to normal breasts. Unsurprisingly, they are capable of turning malignant. Reported cases show the most common area for accessory breast cancer to be the axillary area. We report a rare
case of accessory breast cancer over the costal ridge.
METHODS: We present the
case of a 51-year-old Asian woman who complained of an enlarged mass lower to her left breast developed over the period of 3 months while on contraceptive pills. Unaware that the mass could be an accessory breast, the primary doctor had prescribed oral contraceptives. After our patient had noticed that the mass was obviously growing, she decided to consult a surgeon as the mass continued to grow. Expected to be benign, the mass was investigated by ultrasonography and then excised surgically. A pathology report identified the mass to be a carcinoma of the ectopic breast tissue. However, sentinel lymph node biopsy showed no nodal metastasis of all four lymph nodes. Following surgery, she received chemotherapy, radiation, and antihormonal treatment. After 2 years of postoperative follow up, she remained free of disease.
CONCLUSIONS: This patient was diagnosed as having accessory breast cancer which presented with a subcutaneous mass. As this condition is exceptionally rare but curable by early treatments, we recommend surgeons to consider potential malignancy when patients present with a subcutaneous mass.