FIGO ovarian staging (Prat 2014)

FIGO ovarian

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.

LIVE $0.005 USDC GET /api/calc/figo_ovarian

Markdown: /docs/figo-ovarian.md · Canonical: https://magentlab.com/docs/figo-ovarian

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

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

Title: Staging classification for cancer of the ovary, fallopian tube, and peritoneum
Authors: Prat J; FIGO Committee on Gynecologic Oncology
Source: Int J Gynaecol Obstet. 2014;124(1):1-5
DOI: 10.1016/j.ijgo.2013.10.001

Worked example

Stage IA capsule intact, one ovary or tube

Given: stage=IA

stage IA as assigned by the caller
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

stage IIIA1ii as assigned by the caller
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

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/figo_ovarian?stage=IA

Full URL: https://api.magentlab.com/api/calc/figo_ovarian?stage=IA

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/figo_ovarian?stage=IA"

Parameters

Name	Type	Required	Description
`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.

POST /api/calc/figo_ovarian Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 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 (fixture)

{
  "items": [
    {
      "stage": "IA"
    },
    {
      "stage": "IA"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "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

Field	Type	Description
`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

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "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."
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
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.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

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 — 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 — 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. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /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.