Objective: To investigate the cytohistological findings of 13 breast carcinoma cases with SRCs , 13 cases of SRC type breast cancer had undergone FNA cytology examination before excisional biopsy or operation. All the histological sections of each case were confirmed to have at least 20% SRCs in the tumor cells. The clinicopathological features of SRC type breast cancer were investigated.
Results:Of the 13 breast carcinoma cases, there were invasive ductal carcinoma (IDC) (n=5), invasive lobular carcinoma (ILC) (n=5), pleomorphic lobular carcinoma (PLC) (n=1), and mucinous carcinoma (MC) (n=2). 3 cases of IDC, 1 cases of PLC, and 1 case of MC had grade 2 or 3 nuclear atypia, whereas 1 case of IDC, 4 cases of ILC, and 1 case of MC had grade 1 nuclear atypia. Axillary lymph nodes were positive for metastatic carcinoma in 1 case with IDC and 1 case with ILC. In fine needle aspiration smears, the intracytoplasmic lumen (ICL) type SRCs were found to be major constituents of SRCs in ILC and PLC, while non-ICL type SRCs were predominant in IDC. MC tumors had SRCs of both ICL and non-ICL types. During our follow-up period ranging from 97 to 3650 (1458 ± 1055) days, all the patients were alive without recurrence of the tumor.
Conclusion:Our results indicate that the nature of SRCs may vary with the histological subtype of breast cancer, but its presence may not indicate poor prognosis.