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Record W4412104417 · doi:10.1177/2050313x251350334

Invasive extramammary Paget’s disease of the scrotum: A case report

2025· article· en· W4412104417 on OpenAlexaff
Heidi Oi‐Yee Li, A. Boxtel van, Jennifer Lipson

Bibliographic record

VenueSAGE Open Medical Case Reports · 2025
Typearticle
Languageen
FieldMedicine
TopicCancer and Skin Lesions
Canadian institutionsOttawa HospitalUniversity of Ottawa
Fundersnot available
KeywordsMedicineScrotumExtramammary Paget's diseaseDermatologyPaget DiseaseDiseasePathologySurgery

Abstract

fetched live from OpenAlex

Extramammary Paget's disease is a rare cutaneous malignancy that typically presents as carcinoma in situ, and instances of invasive extramammary Paget's disease are exceptionally rare. Herein, we describe a rare case of invasive extramammary Paget's disease of the scrotum. A 91-year-old male presented with an over 10-year history of a granulomatous rash with serous discharge, refractory to various topical therapies and weekly wound care. Physical examination revealed a well-demarcated, erythematous, mamillated, eroded plaque with arcuate borders involving the left inguinal crease and scrotum. A punch biopsy showed intra-epidermal and invasive carcinoma with focal pagetoid spread and intracytoplasmic mucin. The favored diagnosis was primary, invasive extramammary Paget's disease. The patient underwent a wide local excision and routine imaging surveillance and remains recurrence-free at 1-year follow-up. Given that extramammary Paget's disease remains commonly misdiagnosed, leading to delays in treatment, dermatologists should be aware of this diagnosis, particularly for elderly patients presenting with non-specific genital lesions recalcitrant to routine treatment.

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)0.008
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: Case report · Consensus signal: Case report
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.050
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.008
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.001
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 head0.020
GPT teacher head0.340
Teacher spread0.320 · 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 designCase report
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

Citations0
Published2025
Admission routes1
Has abstractyes

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