Anal Canal Duplication in a 40-Year-Old Adult
Bibliographic record
Abstract
Anal canal duplication (ACD) is the rarest congenital malformation of the digestive tract and is associated with other congenital malformations. The clinical case reports a 40 years old woman who had two episodes of anal abscesses treated with surgical drainage within 1 year. In proctology consultation, the examination revealed a structure in the midline, posterior to the native anus. Pelvic magnetic resonance imaging and anal echoendoscopy confirmed the presence of a tubular structure posterior to the anal canal, compatible with duplication of the anal canal. The patient was proposed for surgical excision but refused. Seven years later, the patient had another anal abscess. She was again proposed for surgery and refused. Around 60 cases of ACD are currently described worldwide. The diagnosis is usually made at an early stage of life. Our patient was diagnosed at the age of 40 years, constituting one of the most elderly patient diagnosed with ACD. J Med Cases. 2018;9(2):61-63 doi: https://doi.org/10.14740/jmc2902w
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.003 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".