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Record W4411347821 · doi:10.1177/2050313x251350372

Chronic non-healing ulcer reveals pyoderma gangrenosum: A case report

2025· article· en· W4411347821 on OpenAlexaff
Orhan Yilmaz, Philip Doiron, Robyn Evans

Bibliographic record

VenueSAGE Open Medical Case Reports · 2025
Typearticle
Languageen
FieldMedicine
TopicAutoimmune and Inflammatory Disorders
Canadian institutionsWomen's College HospitalUniversity of TorontoUniversity of Saskatchewan
Fundersnot available
KeywordsPyoderma gangrenosumMedicineDermatologyNeutrophilic dermatosisSkin biopsySkin ulcerUlcerative colitisPyodermaSurgeryBiopsyIntensive care medicineDiseasePathology

Abstract

fetched live from OpenAlex

Pyoderma gangrenosum is a rare, ulcerative skin condition with complex diagnostic and therapeutic challenges, particularly in cases without associated systemic conditions. We present the case of a 71-year-old female with a chronic, non-healing ulcer, initially unresponsive to conventional topical treatments. After a thorough evaluation and biopsy, a diagnosis of pyoderma gangrenosum was made. Treatment efforts included both intralesional and topical therapies, with varying responses observed. This case highlights the challenges in diagnosing and managing pyoderma gangrenosum, emphasizing the need for individualized care and a multidisciplinary approach to treat chronic, non-healing ulcers.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
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 score0.006
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0030.002
Science and technology studies0.0030.002
Scholarly communication0.0030.003
Open science0.0010.002
Research integrity0.0060.004
Insufficient payload (model declined to judge)0.0030.001

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 head0.013
GPT teacher head0.336
Teacher spread0.322 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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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