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1.  Signet-ring cell carcinoma of the breast: a case report 
Signet-ring cell carcinoma (SRCC) can arise from virtually all organs. However, primary SRCC of the breast is very rare. Until 2003, SRCC was placed under ‘mucin-producing carcinomas’ and separated from other carcinomas by the World Health Organization (WHO). To date, only a few cases have been reported. A case of a 46-year-old woman with primary SRCC of the breast is presented in this report. The patient underwent a right modified radical mastectomy with axillary lymph node dissection. Characteristic features and differential diagnosis of this tumor are discussed in the light of pertinent literature.
doi:10.1186/1477-7819-11-183
PMCID: PMC3751374  PMID: 23938020
Signet-ring cell carcinoma breast cancer
2.  Comparison of Clinical Features and Treatment Outcome of Breast Cancers in Young and Elderly Chinese Patients 
Breast Care  2011;6(6):435-440.
Background
This study aimed to investigate the clinicopathological features and prognosis of operable breast cancers in young and elderly Chinese women.
Patients and Methods
This study included 209 patients aged ≤35 years and 213 patients aged ≥60 but <70 years, who received treatment between January 2000 and December 2004. The clinicopathological features, molecular subtypes, therapeutic strategies, and prognosis were evaluated.
Results
Tumor size was of significant difference between the 2 groups (p = 0.018), with more T2 and T3 tumors in the young group and more lymph node involvement in young patients with stage T1 tumors (p = 0.033). There were more triple-negative and less luminal A tumors in the young group (p = 0.018). 47.1% of tumors were not detected by mammography in the young group as compared to 5.5% in the elderly group (p < 0.001). More patients received chemotherapy in the young group (p < 0.001) and preferred breast-conserving surgery (p = 0.031). The 6-year disease-free survival (DFS) was 80 and 66% in the elderly and the young group, respectively (p = 0.001), but no difference was seen in overall survival.
Conclusions
Compared with elderly women, young breast cancer patients have different clinicopathological features and molecular subtypes, and poorer DFS. Furthermore, the insidious onset of breast cancer in young women suggests that clinicians should pay more attention to young women with breast abnormalities.
doi:10.1159/000332593
PMCID: PMC3290008  PMID: 22419896
Breast; cancer; Molecular subtypes; Prognostic features; Very young women; Elderly women
3.  A case report of primary small cell carcinoma of the breast and review of the literature 
Chinese Journal of Cancer  2012;31(7):354-358.
Primary small cell carcinoma (SCC) of the breast, an exceedingly rare and aggressive tumor, is often characterized by rapid progression and poor prognosis. We report a case of primary SCC of the breast that was diagnosed through pathologic and immunohistochemical examinations. Computed tomography (CT) scans failed to reveal a non-mammary primary site. Due to the scant number of relevant case summaries, this type of tumor is proved to be a diagnostic and therapeutic challenge. Therefore, we also reviewed relevant literature to share expertise in diagnosis, clinicopathologic characteristics, treatment, and prognosis of this type of tumor. Future studies with more cases are required to define more appropriate treatment indications for this disease.
doi:10.5732/cjc.012.10012
PMCID: PMC3777496  PMID: 22516480
Small cell carcinoma; breast; neuroendocrine

Results 1-3 (3)