[A study of prognostic factors in breast cancer: histological grading].
OBJECTIVE
To study the significance of histological grading as a prognostic factor in breast cancer.


METHODS
According to the grading systems of Bloom-Richardson and Elston, 476 cases of invasive ductal carcinoma (IDC) with more than 5 year follow-up were assessed for grade I (GI, 72 cases), grade II (G II, 216 cases) and grade III (G III, 188 cases).


RESULTS
The 5 year survival rate for IDC G I, G II and G III were 81.9% (59 cases), 63.4% (137 cases) and 49.5% (93 cases) respectively.


CONCLUSIONS
Histological grading of IDC is as good a prognostic factor as their clinical stage.
Department of Pathology, Cancer Hospital, Shanghai Medical University, Shanghai 200032.
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Zhang
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Tu
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Xu
D001943:Breast Neoplasms / Q000473:pathology*; D018270:Carcinoma, Ductal, Breast / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009367:Neoplasm Staging; D015996:Survival Rate