Unconventional Histopathological Features With <i>KIAA1549::BRAF</i> Fusion in Advanced Prostatic Adenocarcinoma
Bibliographic record
Abstract
This report delineates an intriguing example of advanced prostatic adenocarcinoma displaying distinctive histopathological characteristics associated with a KIAA1549::BRAF fusion, a genomic anomaly predominantly identified in central nervous system tumors. A 66-year-old man, presenting with acute renal failure, exhibited metastatic disease involving pelvic soft tissue, bladder, liver, and bone. Histological examination revealed a markedly unconventional morphology within the prostate, characterized by infiltrative tumor sheets exhibiting abundant vacuolated cytoplasm, hyperchromatic nuclei, and irregular nuclear membranes, distinct from typical prostatic adenocarcinoma. Immunophenotyping confirmed NKX3.1 positivity and GATA3 negativity. Molecular analysis revealed the rare KIAA1549::BRAF fusion alongside pertinent mutations in phosphatidylinositol 3-kinase, phosphatase and tensin homolog, and tumor protein 53 genes. Despite diverse therapeutic interventions targeting mitogen-activated protein kinase signaling and subsequent clinical trial enrollment, disease progression remained relentless, culminating in the patient's demise within 4 years of diagnosis. This report highlights the exceptional histopathological presentation associated with KIAA1549::BRAF fusion in prostatic adenocarcinoma, emphasizing the need for a deeper comprehension of its implications on disease behavior and therapeutic responsiveness in similar instances.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".