REVIEW 5 major objections 6 minor 24 references
Developing an Artificial Intelligence Tool for Personalized Breast Cancer Treatment Plans based on the NCCN Guidelines
T0 review · 5 major / 6 minor · reviewed 2026-08-10 · deepseek-v4-flash
Pith's one-line read The paper claims that Agentic-RAG, a three-step LLM retrieval pipeline, achieved 100% adherence to NCCN breast cancer treatment guidelines on 24 test questions, with no hallucinations and no incorrect or missing treatments.
desk verdict Sensible RAG engineering, but the 100% adherence claim is unsupported by an unreleased, internally inconsistent evaluation. read the letter →
The pith
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
The reading
What carries the argument
The central mechanism is the three-step Agentic-RAG loop. A first LLM call selects clinical guideline titles from the patient description and question; a retrieval step pulls the corresponding JSON objects, which were created by converting NCCN flowchart and table pages into structured form; a second LLM call generates a recommendation following a fixed template; and a third LLM call checks whether the recommendation covers all required care aspects, sending the system back for another generation when something is missing. The JSON conversion of guideline flowcharts is what makes the retrieval precise enough to reference exact pages.
What would settle it
Take a set of patient cases that exercise less common branches of the breast cancer flowcharts, convert the same pages to JSON, and have two independent oncologists score the outputs; if any recommendation is judged non-adherent by either oncologist, or if a treatment path present in the original PDF is absent from the JSON, the perfect-adherence claim fails.
Extended reading notes
Core claim
In the authors' own terms, the central discovery is that breaking the task into three separate LLM steps—title selection, treatment generation, and insufficiency checking—lets an LLM system stay fully aligned with the NCCN breast cancer guidelines. On every one of the 24 questions derived from patient descriptions, Agentic-RAG produced treatment recommendations that a board-certified physician judged as strictly guideline-adherent, with each treatment traceable to a specific NCCN document and page number. The same retrieval and generation machinery also eliminated hallucinations for Graph-RAG and ChatGPT-4 in this evaluation, but only Agentic-RAG recovered every guideline-relevant treatment without adding unnecessary ones. The authors interpret this as evidence that structured, iterative retrieval from a high-quality guideline-derived knowledge base is sufficient to make LLM recommendations both complete and clinically actionable.
Load-bearing premise
The result depends on the assumption that the conversion of NCCN flowchart pages into JSON objects captures every treatment-relevant branch of the guidelines, and that one physician's adherence rating is a reliable gold standard.
Editorial extensions
If this is right
- If the result holds, a small LLM pipeline can deliver guideline-adherent breast cancer recommendations that a clinician can verify against the source document.
- Source page references in every recommendation give clinicians a concrete audit trail, which the paper argues is essential for clinical use.
- The iterative insufficiency check is the component that appears to close the gap: Graph-RAG, which lacks it, missed four treatments on the same questions.
- The authors state the method is intended to extend to other cancer types, since NCCN guidelines share the same flowchart structure.
Reading between the lines
- The reported 100% is tied to the completeness of the JSON conversion; a missing pathway in that conversion would make a wrong answer look correct, because the LLM can only retrieve what was captured.
- The strongest reading of the reported numbers is limited to the 24 questions actually tabulated; the manuscript also describes a larger 16-patient-by-4-question design, and the difference between those counts is not reconciled in the text.
- A single board-certified physician's judgment is the gold standard here; a second oncologist could plausibly score borderline recommendations differently, so the headline number is as fragile as that judgment is shared.
- Because the reference mechanism is exact page numbers, the system could be extended to automatically flag when guidelines are updated, by re-running retrieval on new guideline versions.
Signed reviews
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper proposes two retrieval-augmented generation systems, Agentic-RAG and Graph-RAG, which convert NCCN breast cancer guideline flowcharts into JSON and use LLM-based retrieval and generation to produce personalized treatment recommendations. The systems are evaluated against ChatGPT-4 on a small set of curated patient descriptions and adjudicated by a single physician. The central claim is that Agentic-RAG achieves 100% guideline adherence with no hallucinations or incorrect treatments, while Graph-RAG and ChatGPT-4 achieve slightly lower adherence. The manuscript reports favorable results for the proposed systems but provides neither the test data nor enough methodological detail to verify those results.
Significance. If the 100% adherence and zero-hallucination claims were supported by a reproducible and internally consistent evaluation, this would be a practically valuable contribution to clinical decision support and to the literature on retrieval-augmented LLMs for medicine. The paper also has a plausible architecture: separating title selection, JSON retrieval, recommendation generation, and insufficiency checking is a sensible way to ground LLM outputs in structured guideline content. However, the evaluation as presented is not credible: the reported numerators and denominators disagree, the ground-truth standard is the same source from which the system retrieves, and the single-rater, unblinded design does not establish independent clinical validity. The significance of the paper therefore remains contingent on a substantially stronger empirical study.
major comments (5)
- [Abstract and Table 1] The reported adherence rates are internally inconsistent. The abstract states that Agentic-RAG achieved 24/24 (100%), Graph-RAG 23/24 (95.8%), and ChatGPT-4 22/24 (91.6%), and that Graph-RAG produced one incorrect treatment and ChatGPT-4 produced two wrong treatments. Table 1, however, lists adherence rates of 100%, 92%, and 94% for the same three systems, and reports 'Wrong treatments 0' for all three. These contradictions are not explained anywhere, and they make it impossible to determine which numbers support the paper's headline claims.
- [Sections 3.1 and 4.1] The test-set denominator is ambiguous. Section 3.1 describes 16 patient descriptions with four question variations each, which would yield 64 question-answer pairs, yet the abstract reports 24 total evaluations and Section 4.1 states that Agentic-RAG 'correctly identified all 50 treatment recommendations.' No explanation reconciles these numbers, so the reported 100% adherence cannot be interpreted as a proportion of a well-defined test set.
- [Section 3.2] The evaluation relies on a single board-certified physician who is not described as blinded to system identity, and no inter-rater reliability is reported. Because the ground truth is the same NCCN guideline content from which the JSON objects in Section 2.1 were derived, the adherence measure largely reflects whether the retrieval system returns the stored content, not whether the recommendations are clinically correct in an independent sense. The paper's own future-work paragraph (Section 5.1) acknowledges that 'involving more oncologists in the evaluation process' is needed, which reinforces that the current single-rater design is insufficient to support the claimed 100% adherence.
- [Section 2.1] The conversion of NCCN flowchart pages into JSON objects is a critical unvalidated step. The paper does not specify the number of pages converted, the extraction protocol, or any quality-assurance check that the JSON faithfully preserves all treatment branches. If the conversion drops or distorts a pathway, both the Agentic-RAG output and the physician's adherence check can agree with each other while diverging from the actual NCCN guideline. No data or validation is provided to rule out this failure mode.
- [Sections 2-4] The central empirical claim is not reproducible. The manuscript provides no patient descriptions, question variations, JSON conversion code, prompts, raw system outputs, or reference annotations. Without any of these artifacts, a reader cannot verify a single adherence judgment, check whether the 24 (or 50, or 64) evaluated items are representative, or audit the claimed absence of hallucinations and incorrect treatments. The paper does not even include an appendix with representative examples of the generated treatment plans.
minor comments (6)
- [Section 5] There is a typo in the conclusion: 'AgGentic-RAG' should be 'Agentic-RAG'.
- [Abstract and throughout] The name of the baseline model is inconsistently written as 'Chat GPT-4' in the abstract and 'ChatGPT-4' in the body and Table 1; please standardize.
- [Section 2.2.3 and Figure 1] The generation step is described as using 'o1-preview' in Section 2.2.3, while Figure 1 and the abstract label the system as 'GPT-4o' and Section 2.2.1 says title selection uses GPT-4o. Clarify which model performs each LLM call.
- [Section 3.2] The paper states that the evaluation framework 'followed the benchmarking methodology described by Chen et al. [24],' but reference [24] is a JAMA Oncology article about chatbots providing cancer treatment information, not a benchmarking methodology paper. The citation appears inaccurate and should be corrected or the statement removed.
- [Section 2.1] The specific NCCN guideline version is not stated in the methodology. Reference [21] gives a version, but the text should explicitly identify the PDF release date and version used for JSON conversion so that the retrieval and evaluation can be reproduced.
- [General] The paper does not include a data-availability or conflict-of-interest statement, which is surprising given the authors' corporate affiliation and the claim that the system is ready for clinical workflows; these statements should be added.
Circularity Check
No circular derivation: the pipeline is built from NCCN-derived JSON and evaluated against the same guidelines, but the paper contains no first-principles derivation whose output reduces to its input.
full rationale
The paper's claimed contribution is an applied retrieval-and-generation system, not a derived quantitative prediction. The systems ingest JSON objects converted from NCCN guideline pages and generate treatment recommendations; the adherence metric compares those recommendations with the same NCCN guidelines. This is a consistency and retrieval-fidelity evaluation rather than an independent clinical validation, and the missing test set, denominator inconsistencies, and single-rater design are serious reproducibility concerns. However, circularity in the sense of an equation reducing to its inputs, a fitted parameter renamed as a prediction, or a load-bearing self-citation chain is not present: no parameter is fitted to the evaluation set, no derived result is defined in terms of itself, and the cited frameworks (Graph-RAG, Chen et al.) are external. The '100% adherence' claim may overstate the strength of a self-referential benchmark, but overstatement is a validity and correctness issue, not a circularity of derivation. Therefore the circularity score is 0.
Assumptions & free parameters
assumptions (4)
- domain assumption NCCN guidelines are the correct, complete standard for breast cancer treatment selection
- domain assumption The JSON conversion of NCCN PDF pages preserves all treatment-relevant information
- domain assumption A single board-certified physician's manual adherence judgment is reliable ground truth
- domain assumption The curated patient descriptions are representative of real clinical scenarios
Cite this review
Pith. "Pith review of Developing an Artificial Intelligence Tool for Personalized Breast Cancer Treatment Plans based on the NCCN Guidelines." pith.science (2026). https://pith.science/paper/N5LT3BCU
@misc{pith2026250215698,
author = {Pith},
title = {Pith review of: Developing an Artificial Intelligence Tool for Personalized Breast Cancer Treatment Plans based on the NCCN Guidelines},
year = {2026},
howpublished = {\url{https://pith.science/paper/N5LT3BCU}},
note = {Machine review of arXiv:2502.15698}
}
read the original abstract
Cancer treatments require personalized approaches based on a patient's clinical condition, medical history, and evidence-based guidelines. The National Comprehensive Cancer Network (NCCN) provides frequently updated, complex guidelines through visuals like flowcharts and diagrams, which can be time consuming for oncologists to stay current with treatment protocols. This study presents an AI (Artificial Intelligence)-driven methodology to accurately automate treatment regimens following NCCN guidelines for breast cancer patients. We proposed two AI-driven methods: Agentic-RAG (Retrieval-Augmented Generation) and Graph-RAG. Agentic-RAG used a three-step Large Language Model (LLM) process to select clinical titles from NCCN guidelines, retrieve matching JSON content, and iteratively refine recommendations based on insufficiency checks. Graph-RAG followed a Microsoft-developed framework with proprietary prompts, where JSON data was converted to text via an LLM, summarized, and mapped into graph structures representing key treatment relationships. Final recommendations were generated by querying relevant graph summaries. Both were evaluated using a set of patient descriptions, each with four associated questions. As shown in Table 1, Agentic RAG achieved a 100% adherence (24/24) with no hallucinations or incorrect treatments. Graph-RAG had 95.8% adherence (23/24) with one incorrect treatment and no hallucinations. Chat GPT-4 showed 91.6% adherence (22/24) with two wrong treatments and no hallucinations. Both Agentic RAG and Graph-RAG provided detailed treatment recommendations with accurate references to relevant NCCN document page numbers.
Figures
Reference graph
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Reviewed August 10, 2026 · model on record in the stance chip above.
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