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Record W4411494290 · doi:10.1177/2050313x251352130

Successful treatment of refractory pyoderma gangrenosum with risankizumab in a 57-year-old patient: A case report

2025· article· en· W4411494290 on OpenAlex
Damy Horth, Nora Assouyat, Isabelle Auger

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueSAGE Open Medical Case Reports · 2025
Typearticle
Languageen
FieldMedicine
TopicAutoimmune and Inflammatory Disorders
Canadian institutionsUniversité Laval
Fundersnot available
KeywordsPyoderma gangrenosumMedicineDapsoneDermatologyInflammatory bowel diseaseRheumatoid arthritisEtanerceptSkin biopsyIsotretinoinSurgeryRefractory (planetary science)TacrolimusBiopsyInternal medicineDiseaseAcne

Abstract

fetched live from OpenAlex

Pyoderma gangrenosum is a neutrophilic dermatosis characterized by rapidly progressing inflammatory skin lesions. It is often associated with underlying systemic conditions, such as inflammatory bowel disease and rheumatoid arthritis. Patients typically present with erythematous papules and pustules that rapidly evolve into painful ulcers, most commonly affecting the lower extremities. In this case report, we describe a 57-year-old female patient with multirefractory pyoderma gangrenosum localized to the lower left leg. The diagnosis was confirmed based on clinical and histopathological features, with a skin biopsy showing compatible findings. Initial treatments, including topical therapies (high-potency steroids, dapsone, and calcineurin inhibitors) and conventional systemic immunosuppressive therapies (corticosteroids and tumor necrosis factor inhibitors), failed to produce significant improvement. However, treatment with risankizumab, an interleukin-23 inhibitor, resulted in substantial ulcer healing over a few weeks and ultimately led to complete resolution.

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.

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: Case report · Consensus signal: Case report
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.066
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.010
GPT teacher head0.297
Teacher spread0.287 · 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