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Clinicopathological features, treatment patterns, and prognosis of squamous cell carcinoma of the breast: an NCDB analysis.


ABSTRACT:

Background

Squamous cell carcinoma (SCC) of the breast is a rare malignancy. The clinicopathological features, treatment patterns and prognosis of SCC of the breast is still unclear.

Methods

In this study, we performed a 1:4 SCC-IDC (infiltrating ductal carcinoma) matching analysis of patients diagnosed between 2004 and 2014, using the data from the national cancer database. We used Chi-square test to compare the clinicopathological features and treatment patterns between SCC (n?=?686) and IDC (n?=?2744) patients. We used Kaplan-Meier analysis and Cox-regression to estimate the survival of SCC and IDC patients.

Results

We observed that SCC patients are more likely to have T3-4, grade III, and ER negative diseases, when compared to IDC patients. Breast conserving surgery (BCS) (58.3% vs 65.4%, p?=?0.048), as well as radiotherapy after BCS (65.3% vs. 83.0%, p?ConclusionsWe conclude that SCC is associated with poorer clinicopathological features, no responses to neoadjuvant chemotherapy and worse clinical outcomes than IDC. The treatment patterns for SCC and IDC are different. Endocrine therapy is necessary for HR-positive SCC patients.

SUBMITTER: Zhu L 

PROVIDER: S-EPMC6323666 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Publications

Clinicopathological features, treatment patterns, and prognosis of squamous cell carcinoma of the breast: an NCDB analysis.

Zhu Liling L   Chen Kai K  

BMC cancer 20190108 1


<h4>Background</h4>Squamous cell carcinoma (SCC) of the breast is a rare malignancy. The clinicopathological features, treatment patterns and prognosis of SCC of the breast is still unclear.<h4>Methods</h4>In this study, we performed a 1:4 SCC-IDC (infiltrating ductal carcinoma) matching analysis of patients diagnosed between 2004 and 2014, using the data from the national cancer database. We used Chi-square test to compare the clinicopathological features and treatment patterns between SCC (n =  ...[more]

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