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Updated: May 8, 2026

Generation of Zebrafish Larval Xenografts and Tumor Behavior Analysis

Generation of Zebrafish Larval Xenografts and Tumor Behavior Analysis

Published on: June 19, 2021

Life beyond Z11.

M Ahmed¹, M Douek

¹Department of Research Oncology, King's College London, Guy's Hospital Campus, Great Maze Pond, London SE1 9RT, UK.

Breast (Edinburgh, Scotland)

|August 31, 2013

Summary

The ACOSOG Z0011 trial found that some breast cancer patients with limited axillary disease did not benefit from axillary lymph node dissection (ALND) when receiving radiation and systemic therapy. Continued long-term follow-up is crucial for this cohort.

Area of Science:

Oncology
Surgical Oncology
Radiotherapy

Background:

The ACOSOG Z0011 (Z11) trial investigated the role of axillary lymph node dissection (ALND) in breast cancer management.
Results indicated a subset of patients with limited axillary disease may not benefit from ALND when treated with whole breast radiotherapy and systemic therapy.

Purpose of the Study:

To emphasize the importance of continued long-term follow-up for patients meeting Z11 criteria who did not undergo ALND.
To advocate for prospective data collection on this cohort to monitor for late survival differences.
To encourage future research to be inclusive of patient groups excluded from the original Z11 trial.

Main Methods:

Analysis of outcomes from the ACOSOG Z0011 trial cohort.
Recommendation for prospective data recording on patients managed without ALND.

Keywords:

Axillary lymph node dissection Sentinel lymph node biopsy

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Call for inclusive future clinical trials in breast cancer axillary staging.

Main Results:

Short-term follow-up suggests no benefit from ALND in specific breast cancer patient groups under multimodal therapy.
The need for long-term surveillance of patients managed conservatively regarding axillary staging.

Conclusions:

Patients fitting Z11 criteria with limited axillary disease may not require ALND if receiving whole breast radiotherapy and systemic therapy.
Long-term outcomes and prospective data collection are essential for this patient group.
Future studies should broaden inclusion criteria beyond Z11 to enhance generalizability.