Metaplastic breast carcinoma: a heterogeneous disease

Area of Science:

• Oncology
• Breast Cancer Research
• Pathology

Background:

• Metaplastic breast cancer (MBC) is a rare and aggressive subtype of breast cancer.
• Characterized by diverse clinicopathologic features and often presenting at advanced stages.

Purpose of the Study:

• To evaluate the clinicopathologic characteristics of MBC.
• To assess the outcomes of multi-disciplinary treatment for MBC patients.

Main Methods:

• Retrospective analysis of 17 female MBC patients treated between June 2000 and January 2012.
• Evaluation of tumor size, age at diagnosis, surgical procedures, lymph node metastasis, and tumor subtype (triple-negative).
• Assessment of adjuvant treatments including postoperative radiotherapy (RT) and systemic therapy.

Main Results:

• Median age at diagnosis was 46 years; median tumor size was 3.5 cm.
• 71% of patients had triple-negative tumors; 35% had lymph node metastasis.
• 3-year Overall Survival (OS) was 91%; 5-year OS was 80%. 3-year and 5-year Disease-Free Survival (DFS) were 76%.

Conclusions:

• Despite aggressive features (younger age, larger tumors, higher metastasis rates), MBC patients in this cohort achieved favorable survival outcomes.
• Multi-disciplinary treatment approaches appear effective in managing MBC.