Abstract

Abstract Aim Sentinel node biopsy (SNB) became established as the standard approach (versus axillary clearance) for axillary staging in the 2000s. This was based on studies showing reductions in short-term morbidity. Symptomatic cancers are biologically more aggressive than screen-detected cancers and are more susceptible to late loco-regional recurrence. Few studies have examined long-term axillary recurrence following SNBs in this subgroup. Method A retrospective case-note review was performed on 82 symptomatic breast cancer patients who had a negative SNB between 2009 and 2010. Clinicopathological data was collected on cancers, axillary nodal pathology, recurrence, and survival. Results Median age was 57 years (range 23–87). Mean tumour size was 20mm (range: 5–50). Fourteen cancers (17%) were ER negative, 11 (19.3%) HER2 positive and 30 (36.3%) were grade 3. Sixty-one (74%) patients had breast-conserving surgery and 21 patients (26%) underwent a mastectomy. After a median follow up of 11.8 years, 3 (3.7%) local, 1 (1.2%) axillary and 10 (12.2%) distant recurrences were seen. Twenty patients (25%) died. The median OS was 11.64 years (range: 1.20–12.47) and median DFS was 11.50 years (range: 1.14–12.47). Axillary recurrence rates were comparable to other studies that contained predominantly screening cancers (0.7–1.6%). Conclusion The risk of axillary recurrence and remains low at 10-year follow up after a negative SNB in symptomatic patients. This is comparable to that of follow up studies in mixed (screening and symptomatic) cohorts demonstrating equivalent long-term oncological safety in this biologically more aggressive cohort.

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