Cutaneous myoepithelioma arising within hidradenoma of the scalp
Bibliographic record
Abstract
A 62-year-old man presented with a 2-year history of a 2-cm cystic mass involving his occiput. There had been recent enlargement, and the clinical impression was that of a pilar cyst. Histopathological sections showed a partially dermal solid and cystic proliferation. The tumor contained areas of glandular differentiation with cuboidal to columnar cells lining luminal and cystic spaces. A concurrent spindle cell proliferation was seen interspersed between glands and also formed broad, cellular sheets of cells. The stroma was sclerotic and without chondroid or myxoid elements. Immunohistochemistry showed that the spindled cells expressed S100 protein, cytokeratin and smooth muscle myosin. The immunohistochemical profile and the relationship with ductal elements supported myoepithelial differentiation. The proliferation warranted the diagnosis of myoepithelioma arising from a hidradenoma, which to our knowledge has not been previously described. In addition to discussing this case, we provide a brief review of epithelial-myoepithelial neoplasms encountered in the skin.
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.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.003 | 0.002 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| 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".