作者: Rona Yaeger , Andrea Cercek , Joanne F. Chou , Brooke E. Sylvester , Nancy E. Kemeny
DOI: 10.1002/CNCR.28729
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摘要: BACKGROUND BRAF mutations occur in 5% to 11% of patients with metastatic colorectal cancer (mCRC) and have been associated poor prognosis. The current study was undertaken determine the clinicopathologic characteristics, PIK3CA (phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha) mutation frequency, outcomes after metastasectomy BRAF-mutant mCRC. METHODS Data from 1941 consecutive mCRC who underwent KRAS/BRAF testing between 2009 2012 at a single institution were identified identify cases (92 cases). BRAF wild-type 2011 (423 cases) served as control group. RESULTS BRAF-mutated found be significantly older age diagnosis, female sex, right-sided location, poorly differentiated morphology, mucinous histology compared cases. more frequently progressed stage III disease (32% vs 17%; P = .003) among those disease, T4 common (48% 27%; P = .05). co-mutated tumors versus 17% KRAS-mutant (P < .01) 4% BRAF/KRAS Patients BRAF-mutated presented peritoneal involvement (26% 14%; P < 0.01) less liver-limited metastases (41% 63%; P < .01). likely undergo 26% 2 years diagnosis disease; P < .01) lower overall survival metastasectomy. CONCLUSIONS BRAF-mutant is worse clinical outcome. commonly develop metastases, present limited liver, shorter tumors. Cancer 2014;120:2316–2324. © 2014 American Society.