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Persistent pigmented purpuric dermatitis: granulomatous variant

2011· review· en· W2079543495 on OpenAlex

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of Cutaneous Pathology · 2011
Typereview
Languageen
FieldMedicine
TopicCutaneous lymphoproliferative disorders research
Canadian institutionsCapital District Health AuthorityDalhousie University
FundersDalhousie University
KeywordsPathologyHemosiderinHistiocyteMedicineContext (archaeology)Differential diagnosisGranulomatous inflammationEtiologyDermatologyBiology

Abstract

fetched live from OpenAlex

The persistent pigmented purpuric dermatitides (PPPD) are a spectrum of dermatologic disorders characterized by petechial and pigmented macules usually confined to the lower limbs. Their etiology is unknown and several clinical variants are recognized. At the microscopic level they are characterized by angiocentric lymphocytic inflammation, red blood cell extravasation and hemosiderin deposition. A granulomatous variant of the PPPD has recently been described and to date eleven cases have been reported in the literature. In contrast to the conventional type, this variant is characterized histopathologically by ill-defined, non-necrotizing granulomata admixed with the lymphocytic inflammatory background. Although initially the granulomatous variant of the PPPD was thought to occur only in Asian patients, this sole racial predilection has not been substantiated. A tenuous association with hyperlipidemia has been noted but this requires further study. The principal importance of recognizing this entity lies in the need to include it in the histopathological differential diagnosis of granulomatous dermal infiltrates. We report here an additional patient with the granulomatous variant of PPPD and elaborate on this entity in the context of existing information in the literature.

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 categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Case report · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.598
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0050.003
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.002
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 head0.054
GPT teacher head0.342
Teacher spread0.288 · 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