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Breast Cancer Res Treat. 1998 Jun;49(3):195-208.

Fibrotic focus in infiltrating ductal carcinoma of the breast: a significant histopathological prognostic parameter for predicting the long-term survival of the patients.

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Pathology Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan.


The presence of fibratic fows (FF) in infiltrating ductal carcinoma (IDC) has been shown to be an important histological factor associated with high tumor aggressiveness, or early tumor recurrence or death. However, the clinicopathological significance of FF for predicting the long-term survival of the patients with IDC has not been fully investigated. In order to elucidate this aspect, we divided 140 IDCs with at least 10 years of follow up into tumors with FF and those without. IDC with FF showed significantly higher histologic grade (P=0.02), higher frequency of tumor necrosis (P=0.02), higher frequency of cases with more than three positive lymph node metastases (P=0.04), higher T classification (P=0.009), and higher pathological stage (P=0.0002) than those without FF. Relative risk (RR) of tumor recurrence and death was significantly higher in tumors with FF than in those without (RR=4.5, P < 0.00001 and RR=5.6, P < 0.00001, respectively). In cases of early stage cancer (stages I, IIA, and IIB), or in those with less than four lymph node metastases, IDCs with FF demonstrated a significantly higher risk than those without. Multivariate adjustments for other pathological factors did not change the RRs significantly. These results indicate that in long-term follow up the presence of FF is a significant prognostic parameter for IDC, and therefore strongly suggest that IDCs must be divided into those with and without FF.

[Indexed for MEDLINE]

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