Patency of the “Third Inguinal Ring” in Children with Unilateral Cryptorchidism: Fact or Fiction?
Bibliographic record
Abstract
BACKGROUND: The entrance to the scrotum, or the so-called "third inguinal ring" (3rd IGR), was thought to be an important finding and etiological factor for cryptorchidism at the beginning of the 20th century. Historical reports of its association with undescended testis suggest that it was considered by many to be a true anatomical entity. As the understanding of testicular descent has changed, the description of this anatomical passage has vanished from textbooks and publications. In order to evaluate the findings that led to its original report, we sought to assess the patency of the expected testicular path of descent into the scrotum in children with unilateral cryptorchidism. METHODS: Two hundred consecutive children who underwent unilateral orchidopexy were prospectively evaluated at the time of surgery to determine the anatomical patency of the area thought to represent the 3rd IGR. We also evaluated its association with the patient's age at surgery, the affected side, position of the undescended testis, macroscopic epididymal anomalies (MEA), and the patency of the processus vaginalis (PV). RESULTS: The mean age at surgery was 5.2 +/- 3.0 years, ranging from 1 to 13 years. The 3rd IGR was closed in 118 boys (59.0 %) and open in 82 (41.0 %). A closed 3rd IGR was found significantly more frequently in patients with intra-abdominal testes (p < 0.01). No significant association was observed between patency of the 3rd IGR and other evaluated factors. CONCLUSION: Our results suggest that the so-called 3rd IGR may represent the passage point of the testicle into the scrotum, which was not patent during the intraoperative examination in (2/3) of children with unilateral cryptorchidism. This observation by surgeons at the beginning of the 20th century may represent an anatomical curiosity rather than an important factor in the pathogenesis of cryptorchidism.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| 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".