期刊
BREAST JOURNAL
卷 21, 期 1, 页码 52-59出版社
WILEY
DOI: 10.1111/tbj.12356
关键词
avoiding mastectomy; breast conservation for large tumors; extreme oncoplasty; multifocal; multicentric breast tumors; oncoplastic breast conservation
Extreme oncoplasty is a breast conserving operation, using oncoplastic techniques, in a patient who, in most physicians' opinions, requires a mastectomy. These are generally large, greater than 5cm multifocal or multicentric tumors. Many will have positive lymph nodes. Most will require radiation therapy, even if treated with mastectomy. Sixty-six consecutive patients with multifocal, multicentric, or locally advanced tumors that spanned more than 50mm were studied (extreme cases). All patients underwent excision and oncoplastic reconstruction using a standard or split wise pattern reduction and immediate contralateral surgery for symmetry. All received postexcisional standard whole breast radiation therapy with a boost to the tumor bed. The extreme cases were compared with 245 consecutive patients with unifocal or multifocal tumors that spanned 50mm or less (standard cases). All extreme patients were advised to have a mastectomy; all sought a breast conserving second opinion. Diagnostic evaluation included digital mammography, ultrasound, MRI, and PET-CT (if invasive). Standard cases did extremely well. No ink on tumor was achieved 96% of the time among 245 patients. The median tumor size was 21mm (mean 23mm). Margins equal or greater than 1mm were achieved in 88.6% of patients. Seventeen (6.9%) standard patients underwent re-excision to achieve wider margins and only one patient (0.4%) was converted to mastectomy. With 24months of median follow-up, three patients (1.2%) experienced local recurrence. For extreme cases, no ink on tumor was achieved 83.3% of the time, which is comparable to published positive margin rates after standard lumpectomy. The median tumor size was 62mm (mean 77mm). Margins equal or greater than 1mm were achieved in 54.5% of patients. Six (9.1%) extreme patients underwent re-excision to achieve wider margins and four patients (6.1%) were converted to mastectomy. With a follow-up of 24months, one patient (1.5%) experienced a local recurrence. Extreme oncoplasty is a promising new concept. It allows successful breast conservation in selected patients with greater than 5cm multifocal/multicentric tumors. It may be useful in patients with locally advanced tumors following neo-adjuvant chemotherapy. From a quality of life point of view, it is a better option than the combination of mastectomy, reconstruction, and radiation therapy. Long-term data on recurrence and survival are not available, using this approach. Based on historical data, it is expected the local recurrence will be somewhat higher but that there will be little or no impact on survival.
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