Abstract
Objective To investigate the clinicopathologic features and prognosis of secretory carcinoma of the breast (SCB).Methods We enrolled 43 cases of secretory carcinoma of the breast out of invasive breast cancer patients according to the 2012 WHO Classification of Tumors of the Breast.Results The incidence of breast SCB was low,accounting for about 0.17％ of all breast cancer patients.The median age of onset was 49 years old.The diameter of tumor was 1.0-10.0 cm(mean size 3.2 cm).Pathology revealed large number of eosinophilic secretory material inside or outside the cancer cells positive for periodic acid-Schiff stains (PAS) and Alcian blue (AB).The positive rate of estrogen receptor (ER) was 34.9％ (15/43),progesterone receptor (PR) was 23.3％ (10/43),human epithelial growth factor receptor 2 (HER-2) was 25.6％ (11/43),S-100 was 97.7％ (42/43),and special PAS and AB diastase were tested and positive in 8 cases.The postoperative average follow-up time was 78 months,7 cases were found with distant metastasis.2 cases dying of distant metastasis.Conclusions SCB has a good prognosis despite of occasionally axillary lymph node metastasis,local recurrence or distant metastasis. Key words: Breast neoplasms ; Pathology, clinical; Prognosis
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