Atypical Presentation of Congenital Yellow Nail Syndrome in a 2-Year-Old Female
Bibliographic record
Abstract
BACKGROUND: Yellow nail syndrome (YNS) is a rare clinical entity of unknown etiology that is characterized by a triad of yellow nails, respiratory manifestations, and lymphedema. The condition appears in the mid- to later years of life and only rarely in childhood. We describe a rare case of YNS with an atypical clinical presentation consisting of only yellow and dystrophic nails in a 2-year-old female since birth. OBJECTIVE: A case of congenital YNS with only dystrophic and yellow nails is reported. METHODS AND RESULTS: A 2-year-old female presented with yellow nails since birth. There was no positive family history. Physical examination revealed 20 thickened, dystrophic, yellow nails with onycholysis. There was no evidence of respiratory manifestations or lymphedema. CONCLUSION: Although rare, YNS can present as a congenital clinical entity and persist after birth. Pediatric patients with YNS show different clinical manifestations than the classic adult patient. The presence of yellow and dystrophic nails in the absence of respiratory and lymphatic manifestations may be the only sign of pathology and warrants close monitoring as progression to more serious complications can occur.
Stored with the screening record, where it is evidence for the labels above.
How this classification was reachedexpand
The three-model screen
all 5,600 screened works →All three models called this out of scope.
Clinical case report of congenital yellow nail syndrome; the object is a disease presentation.
The work reports a clinical case of congenital yellow nail syndrome.
Clinical case report of yellow nail syndrome.
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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".