# FIGO ovarian staging (Prat 2014) FIGO ovarian Status: LIVE Price: $0.005 USDC `GET /api/calc/figo_ovarian` HTML: https://magentlab.com/docs/figo-ovarian Markdown: https://magentlab.com/docs/figo-ovarian.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Echo the caller-assigned Prat 2014 FIGO stage for cancer of the ovary, fallopian tube, and peritoneum and return the published defining-features description. magent does not read imaging or pathology. ## When to use When an agent already has a Prat 2014 FIGO ovarian, tubal, or peritoneal stage token as assigned by the caller and needs the canonical token and published description. magent does not stage from raw findings, apply AJCC TNM, or assign endometrial or cervical FIGO. ## When not to use - Not a medical device. magent does not read imaging or pathology. - The caller assigns stage as a Prat 2014 FIGO token. magent does not stage from raw findings and does not apply AJCC TNM separately. - Prat 2014 tokens only (IA through IVB, including IC1-IC3 and IIIA1i/IIIA1ii). 2014 eliminated IIC; IIC is not a valid token. - Not endometrial FIGO and not cervical FIGO. Not a diagnosis of ovarian, tubal, or peritoneal cancer. Not a treatment order. ## Formula ``` stage in {IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, IVB} as assigned by the caller (Prat 2014 FIGO for ovary, fallopian tube, and peritoneum). 2014 eliminated IIC. magent does not read imaging or pathology. Not AJCC TNM. Not endometrial or cervical FIGO. ``` ## Citation [Staging classification for cancer of the ovary, fallopian tube, and peritoneum](https://doi.org/10.1016/j.ijgo.2013.10.001) Prat J; FIGO Committee on Gynecologic Oncology Int J Gynaecol Obstet. 2014;124(1):1-5 DOI: [10.1016/j.ijgo.2013.10.001](https://doi.org/10.1016/j.ijgo.2013.10.001) ## Worked example ### Stage IA capsule intact, one ovary or tube Given: `stage=IA` 1. stage IA as assigned by the caller 2. tumor limited to one ovary (capsule intact) or fallopian tube; no tumor on surface; no malignant cells in ascites or peritoneal washings ### Stage IIIA1ii retroperitoneal nodes >10 mm Given: `stage=IIIA1ii` 1. stage IIIA1ii as assigned by the caller 2. positive retroperitoneal lymph nodes only, metastasis >10 mm ## Also searched as - FIGO ovarian staging - FIGO 2014 ovary - Prat 2014 staging - ovarian cancer FIGO - fallopian tube FIGO - peritoneal cancer FIGO - FIGO IA IB IC - FIGO IIIA1i IIIA1ii - ovary fallopian peritoneum stage - FIGO Committee gynecologic oncology ## Parameters - `stage` (string, required): Prat 2014 FIGO token as assigned by the caller: IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, or IVB. Case-insensitive accept; returned canonical form keeps lowercase i/ii on IIIA1i and IIIA1ii. IIC is not valid (eliminated in 2014). Not endometrial or cervical FIGO. magent does not read imaging or pathology. ## Bulk (POST) POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement. Method: `POST /api/calc/figo_ovarian` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: PREVIEW - 1 to 25 items. Each item uses the same keys as the GET query parameters. - POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows. - The first invalid item fails the whole request (index in the 400 JSON). You are not charged. - HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row. - Catalog misses (empty matches, found=false) stay paid 200s inside that slot. - x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items. Example request: ```json { "items": [ { "stage": "IA" }, { "stage": "IA" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/figo-ovarian Example 200: ```json { "count": 2, "path": "/api/calc/figo_ovarian", "items": [ { "description": "Tumor limited to one ovary (capsule intact) or fallopian tube; no tumor on surface; no malignant cells in ascites or peritoneal washings", "components": [ { "factor": "ia", "met": true }, { "factor": "ib", "met": false }, { "factor": "ic1", "met": false }, { "factor": "ic2", "met": false }, { "factor": "ic3", "met": false }, { "factor": "iia", "met": false }, { "factor": "iib", "met": false }, { "factor": "iiia1i", "met": false }, { "factor": "iiia1ii", "met": false }, { "factor": "iiia2", "met": false }, { "factor": "iiib", "met": false }, { "factor": "iiic", "met": false }, { "factor": "iva", "met": false }, { "factor": "ivb", "met": false } ], "stage": "IA", "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.", "citation": { "authors": "Prat J; FIGO Committee on Gynecologic Oncology", "doi": "10.1016/j.ijgo.2013.10.001", "id": "prat-2014", "pmid": "24219974", "source": "Int J Gynaecol Obstet. 2014;124(1):1-5", "title": "Staging classification for cancer of the ovary, fallopian tube, and peritoneum" }, "formula": "figo_ovarian", "formula_expression": "stage in {IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, IVB} as assigned by the caller (Prat 2014 FIGO for ovary, fallopian tube, and peritoneum). 2014 eliminated IIC. magent does not read imaging or pathology. Not AJCC TNM. Not endometrial or cervical FIGO." }, { "description": "Tumor limited to one ovary (capsule intact) or fallopian tube; no tumor on surface; no malignant cells in ascites or peritoneal washings", "components": [ { "factor": "ia", "met": true }, { "factor": "ib", "met": false }, { "factor": "ic1", "met": false }, { "factor": "ic2", "met": false }, { "factor": "ic3", "met": false }, { "factor": "iia", "met": false }, { "factor": "iib", "met": false }, { "factor": "iiia1i", "met": false }, { "factor": "iiia1ii", "met": false }, { "factor": "iiia2", "met": false }, { "factor": "iiib", "met": false }, { "factor": "iiic", "met": false }, { "factor": "iva", "met": false }, { "factor": "ivb", "met": false } ], "stage": "IA", "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.", "citation": { "authors": "Prat J; FIGO Committee on Gynecologic Oncology", "doi": "10.1016/j.ijgo.2013.10.001", "id": "prat-2014", "pmid": "24219974", "source": "Int J Gynaecol Obstet. 2014;124(1):1-5", "title": "Staging classification for cancer of the ovary, fallopian tube, and peritoneum" }, "formula": "figo_ovarian", "formula_expression": "stage in {IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, IVB} as assigned by the caller (Prat 2014 FIGO for ovary, fallopian tube, and peritoneum). 2014 eliminated IIC. magent does not read imaging or pathology. Not AJCC TNM. Not endometrial or cervical FIGO." } ] } ``` ## Response fields - `formula` (string): figo_ovarian - `formula_expression` (string): Published Prat 2014 FIGO ovarian-stage rule - `stage` (string): Canonical Prat 2014 token: IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, or IVB - `description` (string): Prat 2014 defining-features wording for that token - `components` (array): Per-token Tree rows ia, ib, ic1, ic2, ic3, iia, iib, iiia1i, iiia1ii, iiia2, iiib, iiic, iva, ivb with factor and met; exactly one is met - `citation` (object): Prat 2014 Int J Gynaecol Obstet citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "description": "Tumor limited to one ovary (capsule intact) or fallopian tube; no tumor on surface; no malignant cells in ascites or peritoneal washings", "components": [ { "factor": "ia", "met": true }, { "factor": "ib", "met": false }, { "factor": "ic1", "met": false }, { "factor": "ic2", "met": false }, { "factor": "ic3", "met": false }, { "factor": "iia", "met": false }, { "factor": "iib", "met": false }, { "factor": "iiia1i", "met": false }, { "factor": "iiia1ii", "met": false }, { "factor": "iiia2", "met": false }, { "factor": "iiib", "met": false }, { "factor": "iiic", "met": false }, { "factor": "iva", "met": false }, { "factor": "ivb", "met": false } ], "stage": "IA", "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.", "citation": { "authors": "Prat J; FIGO Committee on Gynecologic Oncology", "doi": "10.1016/j.ijgo.2013.10.001", "id": "prat-2014", "pmid": "24219974", "source": "Int J Gynaecol Obstet. 2014;124(1):1-5", "title": "Staging classification for cancer of the ovary, fallopian tube, and peritoneum" }, "formula": "figo_ovarian", "formula_expression": "stage in {IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, IVB} as assigned by the caller (Prat 2014 FIGO for ovary, fallopian tube, and peritoneum). 2014 eliminated IIC. magent does not read imaging or pathology. Not AJCC TNM. Not endometrial or cervical FIGO." } ``` ## Errors - HTTP 400 `invalid_figo_ovarian`: FIGO ovarian 2014 needs stage as a Prat 2014 token (IA through IVB, including IC1-IC3 and IIIA1i/ii). Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [RMI](https://magentlab.com/docs/rmi) — Compute the Jacobs 1990 risk of malignancy index as ultrasound score × menopausal score × CA125 (U/ml), then whether that product exceeds the published cutoff of 200. - [IOTA Simple Rules](https://magentlab.com/docs/iota) — Apply Timmerman 2008 simple ultrasound-based rules from ten caller-assigned M-rule and B-rule flags and return m_count, b_count, and whether the mass classifies as malignant, benign, or inconclusive. - [Swede score](https://magentlab.com/docs/swede) — Sum five caller-assigned Strander 2005 Swede integers (acetowhiteness, margins_surface, vessels, lesion_size, iodine; each 0-2; max 10) and return the published total and <5 / 5-7 / >=8 bands. ## Payment Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/docs/mcp ## Guarantees - HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON. - exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE. - HTTP 402 is unpaid only. Do not sign a second authorization because of a 503. - Execution is timeout-bounded and concurrency-capped. - Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.