Abstract：
BACKGROUND:Whether PET scan maximum standard uptake value (SUVmax) could differentiate luminal A from luminal B and help predict the survival of metastatic breast cancer (MBC) patients with luminal subtype is still unknown and need to be investigated. METHODS:305 MBC patients with luminal subtypes were screened with PET/CT. Eligible patients were prospectively followed up. RESULTS:In total, 134 patients were eligible for this study. SUVmax was significantly related to the number of metastatic sites and presence of visceral metastasis on univariate analysis. SUVmax could not effectively differentiate patients with luminal A from luminal B subtype. Although luminal subtype at diagnosis could predict the relapse-free interval, it could not predict progression-free survival (PFS) or overall survival (OS) after developing relapse. In contrast, SUVmax was predictive of both PFS and OS and this effect was maintained in multivariate COX regression model. CONCLUSIONS:SUVmax of MBC did not correlate with molecular subtypes of primary tumor. While molecular subtype may be a valuable prognostic factor at primary diagnosis of breast cancer, the SUVmax, rather than molecular subtype, does have a potential to predict independently in multivariate analysis for the PFS and OS in patients with metastatic disease of luminal subtype.
journal_name
BMC Cancerjournal_title
BMC cancerauthors
Zhang J,Jia Z,Ragaz J,Zhang YJ,Zhou M,Zhang YP,Li G,Wang BY,Wang ZH,Hu XCdoi
10.1186/1471-2407-13-42subject
Has Abstractpub_date
2013-01-31 00:00:00pages
42issn
1471-2407pii
1471-2407-13-42journal_volume
13pub_type
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