Evidence map›Paper›PMID 42065680›Full record

ArticleJournal of breast cancer2026

Clinical Implications of the Langer's Axillary Arch Muscle in Breast Cancer Patients.

Eunhye Kang, Ji-Jung Jung, Hong-Kyu Kim, Han-Byoel Lee, Wonshik Han, Jung Min Chang, Hyeong-Gon Moon

Abstract read
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Article in Journal of breast cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Eunhye KangDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-9955-8597
Ji-Jung JungDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-4080-1075
Hong-Kyu KimDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-4425-972X
Han-Byoel LeeDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-0152-575X
Wonshik HanDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-7310-0764
Jung Min ChangDepartment of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-5726-9797
Hyeong-Gon MoonDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-9981-0286

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLanger's axillary arch (LAA) is a common muscular variant that may affect the assessment of axillary lymph nodes in breast cancer. We investigated whether the presence of the LAA had a meaningful clinical impact in a large cohort of Korean patients with breast cancer.

methodsThe medical records and imaging of 2,904 patients (2,953 cases) who underwent axillary surgery for breast cancer were reviewed. The presence of LAA was determined using chest computed tomography scans. The number of retrieved lymph nodes, the accuracy of axillary ultrasonography, and survival outcomes were compared between the LAA and non-LAA groups.

resultsThe LAA muscle was identified in 301 patients (10.2%). Preoperative ultrasound evaluation showed a lower specificity in the LAA group (77.9% vs. 83.6%,

conclusionThe presence of the LAA muscle was associated with reduced specificity on preoperative ultrasound. Patients with LAA muscle-associated tumors had worse iDFS, with regional axillary recurrence occurring more frequently. Recognition of the LAA muscle during axillary staging and surgery may improve nodal assessment accuracy and outcomes, especially in the era of axillary surgery de-escalation.

Indexed as

Anatomic VariationAxillaBreast NeoplasmsLymph Node Excision

Identifiers

PMID42065680
PMCPMC13144636

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.