Epidermolysis Bullosa Acquisita (Brunsting-Perry Pemphigoid Variant) Localized to the Face and Diagnosed With Antigen Identification Using Skin Deficient in Type VII Collagen
Bibliographic record
Abstract
Brunsting-Perry pemphigoid is defined as an autoimmune vesiculobullous eruption typically localized on the head and neck region with minimal or no mucosal involvement. The disease tends to run a chronic and recurrent course with residual scarring. Histological features are characterized by subepidermal bullae and linear IgG deposits at the dermo-epidermal junction. We report a case of a 46-year-old lady who presented with typical features of Brunsting-Perry pemphigoid. Autoantibodies to type VII collagen were identified by using recessive dystrophic epidermolysis bullosa skin which lacks type VII collagen in an indirect immunofluorescence assay. As a result, we diagnosed our patient as having the Brunsting-Perry pemphigoid variant of epidermolysis bullosa acquisita (EBA). This finding led us to review the literature on target antigens in Brunsting-Perry pemphigoid. Only 11 out of the 58 cases reported to date had target antigens identified. Interestingly, type VII collagen was the second most common target antigen/autoantibody (4 cases) detected after BP180 (5 cases). However, 2 further cases of EBA localized to the face with typical features of Brunsting-Perry pemphigoid were found in the literature. Although the target antigens are heterogeneous in Brunsting-Perry pemphigoid, a significant number of cases represent a clinical presentation of localized EBA.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
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 teacher head, 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".