High tumor budding count is associated with adverse clinicopathologic features and poor prognosis in breast carcinoma

Publication date: Available online 24 June 2017
Source:Human Pathology
Author(s): Xiaoxian Li, Bo Wei, Ceyda Sonmez, Zaibo Li, Limin Peng
This study is to address the significance of tumor budding (TB) in breast carcinoma. Totally 244 estrogen receptor-positive (ER+)/HER2-negative (HER2-) and 131 triple-negative breast carcinoma (TNBC) diagnosed from 2004 to 2014 were analyzed. TB (cluster of up to 5 tumor cells at the invasive front) was evaluated using five 200x high power field (HPF) at the hotspot. The highest TB (H-TB) in 1 HPF and average TB (A-TB) in 5 HPFs were correlated with lymph node and distant metastasis, lymphovascular invasion (LVI), local recurrence, overall survival (OS), disease-free survival (DFS). In ER+/HER2- cancer, H-TB and A-TB were significantly associated with distant metastasis. In TNBC, H-TB was associated with distant metastasis by univariate but not multivariate analysis; H-TB and A-TB were associated with LVI and worse OS (all P<.05). TB is associated with poor prognosis in ER+/HER2- and TNBC cancer. Evaluation of H-TB may be sufficient in breast carcinoma.



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