{"uid":"cap_XMs3ls6IWf7cYiPLEdMAX","slug":"magent-gelf-criteria-calculator-de795940","name":"magent GELF Criteria Calculator","description":"GELF criteria (Brice 1997). High tumor burden in follicular lymphoma if any of eight caller-assigned items: mass >7 cm; ≥3 nodes each >3 cm; B symptoms; spleen below umbilicus; compression; serous effusion; leukemic phase; cytopenia. Any yes is high_burden. Not a treatment order, not FLIPI, not IPI, not modified GELF. magent does not measure nodes, spleen, counts, or effusions.","url":"https://api.magentlab.com/api/calc/gelf","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["mass_gt_7cm","three_nodes_gt_3cm","b_symptoms","spleen_below_umbilicus","compression","effusion","leukemic_phase","cytopenia"],"properties":{"effusion":{"type":"boolean","description":"Pleural or peritoneal serous effusion as assigned by the caller. true or false. magent does not image or tap an effusion."},"cytopenia":{"type":"boolean","description":"Cytopenia as assigned by the caller (paper: granulocytes <1.0×10^9/L and/or platelets <100×10^9/L). true or false. magent does not count cells."},"b_symptoms":{"type":"boolean","description":"Systemic / B symptoms as assigned by the caller. true or false. magent does not take a history."},"compression":{"type":"boolean","description":"Compression syndrome (ureter, GI tract, great vessels, or other vital organ as assigned by the caller). true or false. magent does not diagnose compression."},"mass_gt_7cm":{"type":"boolean","description":"Any nodal or extranodal tumor mass >7 cm as assigned by the caller. true or false. magent does not measure nodes or extranodal masses."},"leukemic_phase":{"type":"boolean","description":"Leukemic phase as assigned by the caller (paper: circulating malignant cells >5.0×10^9/L). true or false. magent does not count cells."},"three_nodes_gt_3cm":{"type":"boolean","description":"At least 3 nodal sites, each with diameter >3 cm, as assigned by the caller. true or false. magent does not count or measure nodes."},"spleen_below_umbilicus":{"type":"boolean","description":"Substantial splenic enlargement (inferior margin below the umbilicus) as assigned by the caller. true or false. magent does not measure the spleen."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"path":"/api/calc/gelf","count":2,"items":[{"formula":"gelf","citation":{"id":"brice-1997","doi":"10.1200/JCO.1997.15.3.1110","pmid":"9060552","title":"Comparison in low-tumor-burden follicular lymphomas between an initial no-treatment policy, prednimustine, or interferon alfa: a randomized study from the Groupe d'Etude des Lymphomes Folliculaires","source":"J Clin Oncol. 1997;15(3):1110-1117","authors":"Brice P, Bastion Y, Lepage E, Brousse N, Haïoun C, Moreau P, Straetmans N, Tilly H, Tabah I, Solal-Céligny P"},"criteria":[{"met":false,"factor":"mass_gt_7cm"},{"met":false,"factor":"three_nodes_gt_3cm"},{"met":false,"factor":"b_symptoms"},{"met":false,"factor":"spleen_below_umbilicus"},{"met":false,"factor":"compression"},{"met":false,"factor":"effusion"},{"met":false,"factor":"leukemic_phase"},{"met":false,"factor":"cytopenia"}],"disclaimer":"Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.","tumor_burden":"low_burden","formula_expression":"high tumor burden iff any of the 8 Brice 1997 GELF criteria"},{"formula":"gelf","citation":{"id":"brice-1997","doi":"10.1200/JCO.1997.15.3.1110","pmid":"9060552","title":"Comparison in low-tumor-burden follicular lymphomas between an initial no-treatment policy, prednimustine, or interferon alfa: a randomized study from the Groupe d'Etude des Lymphomes Folliculaires","source":"J Clin Oncol. 1997;15(3):1110-1117","authors":"Brice P, Bastion Y, Lepage E, Brousse N, Haïoun C, Moreau P, Straetmans N, Tilly H, Tabah I, Solal-Céligny P"},"criteria":[{"met":false,"factor":"mass_gt_7cm"},{"met":false,"factor":"three_nodes_gt_3cm"},{"met":false,"factor":"b_symptoms"},{"met":false,"factor":"spleen_below_umbilicus"},{"met":false,"factor":"compression"},{"met":false,"factor":"effusion"},{"met":false,"factor":"leukemic_phase"},{"met":false,"factor":"cytopenia"}],"disclaimer":"Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.","tumor_burden":"low_burden","formula_expression":"high tumor burden iff any of the 8 Brice 1997 GELF criteria"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LvG-lqVAwi11AaASoV5Bc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Applies the Brice 1997 GELF criteria to classify follicular lymphoma tumor burden as high or low based on eight clinician-assigned boolean factors","exampleAgentPrompt":"Apply the Brice 1997 GELF criteria to this follicular lymphoma patient: no mass over 7 cm, no three nodes each over 3 cm, no B symptoms, spleen does not extend below the umbilicus, no compression syndrome, no serous effusion, no leukemic phase, and no cytopenia — is this high or low tumor burden?","exampleUseCases":[{"title":"Automated FL tumor burden triage","prompt":"For my follicular lymphoma patient who has a mass larger than 7 cm but no other GELF criteria — no B symptoms, spleen not below umbilicus, no compression, no effusion, no leukemic phase, no cytopenia, and fewer than 3 nodes over 3 cm — run the GELF rule and tell me whether they qualify as high tumor burden."},{"title":"Watchful waiting eligibility check","prompt":"I want to know if this FL patient can be watched without treatment using the GELF criteria: no mass over 7 cm, three or more nodal sites each bigger than 3 cm, no B symptoms, no spleen below umbilicus, no compression, no effusion, not in leukemic phase, no cytopenia."},{"title":"Oncology agent pipeline classification","prompt":"Classify tumor burden for a follicular lymphoma case using the 1997 Brice GELF rule — the patient has B symptoms and a pleural effusion, but no mass over 7 cm, no three-node criterion, spleen is not below the umbilicus, no compression, not leukemic, and no cytopenia."}],"resultDescription":"Returns a JSON object containing the overall tumor_burden classification ('high_burden' or 'low_burden'), the per-criterion breakdown showing which of the eight GELF factors were met, the full Brice 1997 citation including DOI and PMID, the formula expression, and a medical disclaimer clarifying that this is a deterministic calculation tool and not a medical device.","failureModes":["Missing any of the eight required boolean query parameters returns a validation error","Non-boolean values for any parameter cause a schema rejection","Network or payment authorization failures (x402) prevent the call from completing","Truncated or malformed query strings may result in incorrect classification if defaults are silently applied"],"whenToPreferThis":"Use this endpoint when you need a deterministic, citable implementation of the Brice 1997 GELF criteria specifically — not FLIPI, not IPI, not modified GELF variants. It is ideal for autonomous oncology agents that have already gathered clinical findings from structured data and need to apply the published rule programmatically. Prefer this over a general LLM inference when auditability, citation fidelity, and reproducibility are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:42:46.796Z","isFirstParty":false}