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Original Article
Clinical Analysis of the Favorable Type of Breast Cancer - Medullary , Mucinous , Papillary and Tubular Carcinoma
Chang Wan Jeon, Woo Chul Noh, Nan Mo Moon, Nam Sun Paik, Jong Inn Lee, Dong Wook Choi, Ho Yoon Bang
J Korean Cancer Assoc. 1999;31(1):82-89.
AbstractAbstract PDF
PURPOSE
The favorable types of the breast cancer - medullary, mucinous, papillary and tubular carcinoma are uncommon subtypes and their incidences in different series ranges between 2.0% and 8.0%, 1% and 2%, 0.3% and 3%, less than 2% of all breast cancers, respectively. In westem countries these subtypes have been reported to have good prognosis and slow growth rate. Clinically, these tumors have lower frequency of axillary nodal involvement and better 5-year or 10-year surviral rate than the other common types of breast cancer.
MATERIALS AND METHODS
To determine the clinical characteristics and to evaluate the correlation between the progrostic factors and survival rate of these tumors, the medical records of 83 women with medullary, mucinous, papillary and tubular carcinoma treated at Korea Cancer Center Hospital between Jan. 1987 and Dec. 1997 were reviewed retrospectively.
RESULTS
The incidences of medullary, mucinous, papillary and tubular carcinoma were 0.51%, 1.45%, 0.71% and 0.14% of all breast cancer, respectively. There were 1 case of local recurrence and 5 cases of systemic relapse during the follow-up (median follow-up peroid of 56 months). Overall 5-year survival and 10-year survival rate were 98.5% and 94.2%, respectively. No significant difference in overall survival rate was detected according to histologic types of these tumors but disease-free survival was significantly lower in papillary carcinoma than the other types of these tumors (p=0.042). Standard prognostic factors of breast cancer such as tumor size, lymph node status, age of the patient and ER status did not affect the prognosis of these tumors.
CONCLUSION
Medullary, mucinous, papillary and tubular carcinoma revealed very excellent prognosis in this study regardless of tumor size, lymph node status, age of the patients and ER status.
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