Cutaneous polyarteritis nodosa and concurrent pseudoxanthoma elasticum–like phenotype: A case report
Bibliographic record
Abstract
We report a unique case of a patient presenting with histologically confirmed pseudoxanthoma elasticum-like phenotype and cutaneous polyarteritis nodosa. Cardiac, gastroenterological, and ophthalmologic evaluations were within normal limits. Genetic evaluation was pertinent for absent ABCC6, ENPP1, and GGCX mutations and a normal array comparative genomic hybridization. Extensive workup revealed skin-limited cutaneous polyarteritis nodosa, and further genetic testing for ADA2 deficiency was negative. The cutaneous polyarteritis nodosa lesions had an excellent response to hydroxychloroquine and methotrexate. Pseudoxanthoma elasticum and polyarteritis nodosa are relatively uncommon, and our patient is among the first reported cases presenting with both pseudoxanthoma elasticum-like and polyarteritis nodosa. Furthermore, this case emphasizes the importance of a thorough cutaneous exam, as the patient had the lesions consistent with pseudoxanthoma elasticum-like since childhood and had previously gone undiagnosed.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.004 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".