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Record W4408861538 · doi:10.14740/jmc5094

Successful Sentinel Lymph Node Biopsy in Accessory Breast Cancer

2025· article· en· W4408861538 on OpenAlexvenueno aff
Young Duck Shin

Bibliographic record

VenueJournal of Medical Cases · 2025
Typearticle
Languageen
FieldMedicine
TopicCancer and Skin Lesions
Canadian institutionsnot available
Fundersnot available
KeywordsMedicineSentinel lymph nodeBreast cancerBiopsyCancerRadiologyOncologyInternal medicine

Abstract

fetched live from OpenAlex

Primary breast cancer occurring in accessory breast tissue is exceptionally rare, with an incidence of 0.2-0.6%. It can aggressively progress, often leading to early metastasis. Treatment is typically delayed due to the rarity, variety of differentials, and lack of clinical awareness of the disease. In axillary surgery, sentinel lymph node mapping in patients with axillary breast cancer is technically challenging and has been poorly described. Here, we present a case of a 53-year-old woman with a 0.5 × 1 cm hard lump in the right axillary region for 2 years, progressive growth for 6 months, and no concomitant breast lesion or axillary lymphadenopathy. Core needle biopsy revealed invasive ductal carcinoma with estrogen receptor and progesterone receptor expression and human epidermal growth factor receptor 2 negativity, whereas mammography and breast magnetic resonance imaging revealed no primary breast lesions. She was diagnosed with invasive cancer arising from an accessory breast and underwent wide total excision of the right accessory breast and sentinel lymph node biopsy. Sentinel lymph node biopsy can be successfully performed using intratumoral dye and subareolar radiocolloid mapping in accessory breast cancer surgery. Axillary accessory breast tissue is outside the scope of the screening breast examination; therefore, oncologists must be aware of this entity and associated pathologies.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.053
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.024
GPT teacher head0.365
Teacher spread0.341 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations3
Published2025
Admission routes1
Has abstractyes

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