What is locally advanced breast cancer (LABC)?

Updated: Feb 04, 2021
  • Author: Pavani Chalasani, MD, MPH; Chief Editor: John V Kiluk, MD, FACS  more...
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LABC is more common in the US than IBC is; by the definition used here, it may account for 10-15% of patients (this drops to about 5% if one uses the older, stricter definition that includes inoperability). Epidemiologically, LABC is associated with lower socioeconomic class and, probably for that reason, with black race in the United States.

LABC encompasses both relatively indolent neglected tumors and those that have grown rapidly as a result of their inherent biology. In most case series, LABC has a better long-term outcome than IBC does, even when only inoperable cases are considered.

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