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Related Experiment Videos

[Evantail resection].

K Enomoto1

  • 1Dept. of Surgery, School of Medicine, Keio University, Japan.

Gan to Kagaku Ryoho. Cancer & Chemotherapy
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

Small breast cancers often show extensive invasion into surrounding tissue. Evantail resection, a modified quadrantectomy, was developed to address this, showing a low local recurrence rate in early studies.

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Area of Science:

  • Oncology
  • Surgical Pathology
  • Breast Cancer Research

Context:

  • Assessing histopathological features of small breast cancers (≤1.0 cm).
  • Evaluating the extent of invasion into surrounding breast tissue.
  • Analyzing invasion rates across different breast cancer subtypes (defined, poorly defined, intraductal).

Purpose:

  • To investigate the frequency and patterns of extensive invasion in small breast cancers.
  • To introduce and describe the Evantail resection technique, a modification of quadrantectomy.
  • To report the initial clinical outcomes, specifically local recurrence rates, following Evantail resection.

Summary:

  • Thirty-five of 87 small breast cancers (≤1.0 cm) exhibited invasion beyond 2.0 cm from the tumor border.

Related Experiment Videos

  • Invasion rates varied by subtype: 29% for defined, 44% for poorly defined, and 47% for intraductal types.
  • Evantail resection was performed on 42 patients, resulting in one local recurrence (2.4%) at a median follow-up of 22 months.

    • Impact:

    • Highlights the potential for significant subclinical invasion in small breast cancers, irrespective of defined borders.
    • Introduces Evantail resection as a potentially effective surgical option for managing small breast cancers with extensive invasion.
    • Provides preliminary evidence for the efficacy of Evantail resection in reducing local recurrence rates.