Pemphigus vulgaris of the vagina—Its cytomorphologic features on liquid‐based cytology and pitfalls: Case report and cytological differential diagnosis
Bibliographic record
Abstract
Pemphigus vulgaris is an autoimmune bullous disease that involves skin and mucous membrane. Although the female genital tract is rarely affected, its cytomorphologic features on a conventional cervicovaginal smear have been notoriously described with a possibility of being misdiagnosed as neoplastic lesions. Its cytological mimicry for squamous cell carcinoma has been described as having serious misdiagnostic potential, particularly if appropriate clinical information is not provided. We report a case of pemphigus vulgaris involving the vagina diagnosed on a liquid-based cervicovaginal smear Thin Prep(R) (TP). The smear was initially reported as squamous cell carcinoma. However, re-evaluation of the TP smear raised the suspicion of pemphigus, which was supported subsequently by clinical information and tissue biopsy confirmation. We described the cytologic features of pemphigus vulgaris on a TP smear and compared them with those of neoplastic conditions. Pemphigus cells on a TP smear exhibit similar cytomorphologic features to those on a conventional smear. Recognizing euchromatin pattern and smooth nuclear contours which may be better appreciated on a TP can prevent overdiagnosis.
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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 | 0.000 | 0.010 |
| 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 | 0.001 |
| 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".