Hypersomatotropism and Hypercortisolism Caused by a Plurihormonal Pituitary Adenoma in a Dog
Bibliographic record
Abstract
A 12-year-old, male Labrador Retriever was presented because of polyuria, polydipsia, polyphagia, joint pain, and physical features consistent with acromegaly. Circulating insulin-like growth factor-1 (IGF-1) concentration was increased (> 1000 ng/mL; reference interval [RI], 42-449), suggestive of hypersomatotropism. An abnormal low-dose dexamethasone suppression test and increased circulating adrenocorticotropic (ACTH) concentration indicated pituitary-dependent hypercortisolism. Computed tomography identified an enlarged pituitary gland. Treatment with cabergoline initially decreased circulating IGF-1 and ACTH concentrations and urinary cortisol-to-creatinine ratio (UCCR), with a notable reduction in acromegalic physical features. However, 7 months after the start of cabergoline treatment, IGF-1, ACTH, and UCCR had increased again, although pituitary gland size remained stable. Because of worsening joint pain, euthanasia was performed. On necropsy, double immunohistochemistry identified pituitary tumor cells with cytoplasmic co-expression of both growth hormone (GH) and ACTH, consistent with a monomorphic plurihormonal macroadenoma. This case shows that concurrent hypersomatotropism and hypercortisolism can occur in dogs caused by a plurihormonal pituitary adenoma.
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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 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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".