O-RADS MRI Ovarian-Adnexal Reporting and Data System, MRI

vigente

MRI risk stratification of adnexal lesions.

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Procedência e vigência

Órgão emissor: American College of Radiology
Versão: 2021
Ano: 2021
Família: léxico
Tipo de lógica: flat
Modalidade: MRI
Fonte primária: O-RADS MRI risk stratification system for adnexal lesions
Última verificação: 2026-06-22
Última checagem: 2026-06-22

Lógica de decisão

Forma estruturada (flat). Uma futura calculadora a lê; as categorias abaixo são a superfície legível.

Mostrar a lógica estruturada (JSON)

{
  "categories": [
    "1",
    "2",
    "3",
    "4",
    "5"
  ]
}

Categorias num relance

Cat.	Significado	Conduta	Risco	Fonte
1	O-RADS MRI 1 Normal ovaries / no adnexal lesion: non-ovarian lesion, or a normal physiologic structure such as a follicle (simple cyst <=3 cm), corpus luteum, or hemorrhagic cyst.	—	No assigned malignancy risk (normal ovaries).	okfonte PMC9254700, Table 1 'O-RADS MRI scoring system' (Materials and Methods): Score 1 'Normal ovaries' = 'Non-ovarian lesion. Follicle (simple cyst <= 3 cm), corpus luteum, or hemorrhagic cyst'; PPV listed as not applicable.
2	O-RADS MRI 2, almost certainly benign Almost certainly benign lesion: unilocular cyst with simple or endometriotic fluid content, with a smooth enhancing wall and no enhancing solid tissue.	—	PPV for malignancy < 0.5%.	okfonte PMC9254700, Table 1 'O-RADS MRI scoring system': Score 2 (Almost certainly benign) = 'Unilocular cyst with simple or endometrial fluid content (smooth enhancing wall and no enhancing solid tissue)', PPV < 0.5%.
3	O-RADS MRI 3, low risk Low-risk lesion: unilocular cyst with proteinaceous, hemorrhagic, or mucinous fluid content, with a smooth enhancing wall and no enhancing solid tissue.	—	PPV for malignancy approximately 5%.	okfonte PMC9254700, Table 1 'O-RADS MRI scoring system': Score 3 (Low risk) = 'Unilocular cyst with proteinaceous, hemorrhagic or mucinous fluid content (smooth enhancing wall and no enhancing solid tissue)', PPV ~ 5%.
4	O-RADS MRI 4, intermediate risk Intermediate-risk lesion: a lesion containing enhancing solid tissue showing an intermediate-risk (type 2) time-intensity curve on dynamic contrast-enhanced (DCE) MRI.	—	PPV for malignancy approximately 50%.	okfonte PMC9254700, Table 1 'O-RADS MRI scoring system': Score 4 (Intermediate risk) = 'Lesion with solid tissue: intermediate-risk (type 2) time-intensity curve on DCE MRI', PPV ~ 50%.
5	O-RADS MRI 5, high risk High-risk lesion: a lesion containing enhancing solid tissue showing a high-risk time-intensity curve on dynamic contrast-enhanced (DCE) MRI (or peritoneal/serosal/mesenteric implants).	—	PPV for malignancy approximately 90%.	okfonte PMC9254700, Table 1 'O-RADS MRI scoring system': Score 5 (High risk) = 'Lesion with solid tissue: high risk time-intensity curve on DCE MRI', PPV ~ 90%.

Referências cruzadas

encaminha paraO-RADS US. Ovarian-Adnexal Reporting and Data System, ultrasoundO-RADS MRI is used to further characterize indeterminate lesions seen on O-RADS US.

Histórico de versões

Data	Evento	Detalhe	Situação
2021-01-01	published	O-RADS MRI risk stratification system published.	confirmado

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