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Seroma Cytology in Breast Cancer: An Underappreciated Issue

      Abstract

      Background

      The presence of malignant cells in postoperative seroma has been ignored in current breast cancer treatment. We aimed to assess the presence of malignant seroma cytology and to evaluate its relationship with the known prognostic factors for breast cancer.

      Patients and Methods

      The solution from irrigation of the operation field and postoperative drainage fluid from 68 patients were prospectively collected and examined for malignant cytology. The results were evaluated according to the tumor characteristics and patient demographics.

      Results

      Malignant cytology was found in none of the intraoperative samples but was found in the postoperative samples from 4 patients. Of these 4 patients, 3 were free of axillary metastasis. None of the common risk factors for breast cancer was associated with the finding of malignant cytology.

      Conclusion

      Malignant cells can be seen in the drainage fluids from breast cancer patients independent of any contamination occurring during surgery, even in those without axillary metastasis.

      Keywords

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