Tumor characteristics and patient outcomes are similar between invasive lobular and mixed invasive ductal/lobular breast cancers but differ from pure invasive ductal breast cancers

被引:62
作者
Bharat, Ankit [1 ]
Gao, Feng [2 ]
Margenthaler, Julie A. [1 ]
机构
[1] Washington Univ, Sch Med, Dept Surg, St Louis, MO 63110 USA
[2] Washington Univ, Sch Med, Div Biostat, St Louis, MO 63110 USA
关键词
Invasive breast cancer; Histological subtypes; Mixed tumors; CARCINOMA;
D O I
10.1016/j.amjsurg.2009.06.005
中图分类号
R61 [外科手术学];
学科分类号
摘要
BACKGROUND: The aim of this study was to investigate the clinical characteristics associated with invasive lobular cancer (ILC) and mixed invasive ductal cancer (IDC) and ILC compared with IDC. METHODS: From 1996 to 2006, 4,336 patients with IDC, ILC, and mixed breast cancers were identified. Clinical variables were compared using chi(2) and Fisher's exact tests. Kaplan-Meier survival curves were constructed. RESULTS: Patients included 3,595 (83%) with IDC, 480 (11%) with ILC, and 261 (6%) with mixed cancers. Patients with ILC and mixed cancers were more likely to have low-grade and estrogen-positive and progesterone-positive tumors but were diagnosed at higher stages of disease compared with patients with IDC (P < .05 for each). Patients with IDC had the poorest 5-year (80%) and 10-year (61%) survival compared with patients with ILC (87% and 68%) and mixed (84% and 69%) cancers (P = .029). CONCLUSIONS: Although patients with ILC and "mixed" cancers are diagnosed with more advanced disease, their survival is superior to patients with IDC. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:516 / 519
页数:4
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