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Fong 1999 Clinical Risk Score for Hepatic Resection (Colorectal Metastases)
x402
Fong 1999 Clinical Risk Score for Hepatic Resection (Colorectal Metastases) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Computes the Fong 1999 five-factor preoperative clinical risk score (0–5) for patients undergoing hepatic resection for metastatic colorectal cancer, and flags whether the score is favorable (≤2).
Price / call$0.005
Success—
StatusUnknown
How this service works
Fong 1999 clinical score after hepatic resection for metastatic colorectal cancer: five caller-assigned preoperative flags (node-positive primary, disease-free interval <12 months, more than one hepatic tumor, largest tumor >5 cm, CEA >200 ng/mL), 1 point each, score 0–5. favorable is true iff score ≤2. Not a resectability decision or adjuvant protocol. magent does not interpret imaging or pathology.
Output
Returns the integer Fong clinical risk score (0–5) summed from the five boolean risk factors, plus a 'favorable' boolean indicating whether the score is ≤2, along with the individual flag values used in the computation.
Example use cases
Preoperative risk stratification for liver resection
“I have a patient with metastatic colorectal cancer being evaluated for liver resection. The primary was node-positive, disease-free interval was 8 months, there are two hepatic tumors, the largest is 3 cm, and CEA is 180 ng/mL. What's their Fong score and is it considered favorable?”
Oncology pipeline automated scoring
“For our CRC surgery dashboard, run the Fong 1999 score on this patient: node-positive primary yes, DFI less than 12 months yes, more than one hepatic tumor no, largest tumor greater than 5 cm no, CEA greater than 200 ng/mL no. Give me the total score and whether it's favorable.”
Clinical trial eligibility pre-screening
“We're pre-screening patients with hepatic colorectal mets for a trial. This patient has a node-negative primary, DFI of 14 months, one hepatic lesion, largest tumor 6 cm, and CEA of 210 ng/mL. Compute their Fong score so we can document preoperative risk category.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/fongWhen to prefer
Use this endpoint when you need a reliable, automated implementation of the published Fong 1999 five-criterion clinical risk score specifically for colorectal cancer hepatic resection prognosis. Prefer it over manual calculation in agentic or pipeline workflows where reproducibility matters. Note: this endpoint only performs the arithmetic scoring — it does not assess resectability, interpret imaging, or recommend adjuvant therapy.
Side effects
- Missing required boolean parameter returns a validation error
- Non-boolean value for a flag field causes a schema error
- Equality at a threshold (e.g. CEA exactly 200, DFI exactly 12 months) must be pre-resolved by the caller — the API does not adjudicate borderline values
- Network timeout or 402 payment failure if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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