O-RADS US Ovarian-Adnexal Reporting and Data System, ultrasound

vigente

Ultrasound risk stratification and management of adnexal lesions.

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Escala de categorias

0 1 2 3 4 5

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Procedência e vigência

Órgão emissor: American College of Radiology
Versão: US 2019
Ano: 2020
Família: léxico
Tipo de lógica: flat
Modalidade: US
Fonte primária: O-RADS US Risk Stratification and Management System: A Consensus Guideline from the ACR Ovarian-Adnexal Reporting and Data System Committee · doi:10.1148/radiol.2019191150
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": [
    "0",
    "1",
    "2",
    "3",
    "4",
    "5"
  ]
}

Categorias num relance

Cat.	Significado	Conduta	Risco	Fonte
0	Incomplete evaluation Incomplete evaluation: the adnexa or lesion cannot be adequately assessed on the available ultrasound study (insufficient/incomplete imaging).	—	—	okfonte Front Pediatr 2023 (PMC10030612), 'Retrospective images analysis' section listing O-RADS categories: 'O-RADS 0: incomplete evaluation'; corroborated by appliedradiology.com O-RADS section ('O-RADS 0 ... the adnexa are incompletely evaluated')
1	Normal ovary, physiologic Normal ovary / definitively benign physiologic finding (e.g., a normal premenopausal ovary, including follicles and corpus luteum); no discrete lesion meeting higher-category descriptors.	—	—	okfonte Front Pediatr 2023 (PMC10030612), O-RADS category list: 'O-RADS 1: definitively benign. Normal ovaries'; corroborated by appliedradiology.com O-RADS section ('O-RADS 1 ... the normal premenopausal ovary')
2	Almost certainly benign Almost certainly benign lesion: classic benign appearances such as a simple cyst, classic hemorrhagic cyst, classic dermoid (mature cystic teratoma), classic endometrioma, para-ovarian cyst, peritoneal inclusion cyst, or hydrosalpinx; also unilocular cysts up to about 10 cm with smooth inner walls and no solid component.	For lesions with classic benign ultrasound features, no further evaluation is generally required on identification; certain subtypes warrant short-interval follow-up ultrasound (e.g., larger hemorrhagic cysts and endometriomas) as described in the source.	Almost certainly benign, with less than 1% risk of malignancy.	okfonte Risk band from Front Pediatr 2023 (PMC10030612) ('O-RADS 2: almost certainly benign category (<1% risk of malignancy)') and JAMA Netw Open 2022 (PMC9185186) Discussion ('O-RADS US 2 was 0.5%, (<1%; expected)'); descriptors and management from appliedradiology.com O-RADS section and the reproduced ACR O-RADS US Risk Stratification Table (PMC9185186 Figure 1)
3	Low risk of malignancy Low-risk lesion: e.g., a unilocular cyst 10 cm or larger with smooth inner wall, a multilocular cyst smaller than 10 cm with smooth inner wall and color score 1-3, a unilocular cyst with an irregular inner wall (less than 3 mm), or a smooth-contoured solid lesion of any size with color score 1.	MRI may be valuable for further characterization of O-RADS 3 lesions (per appliedradiology.com); the underlying ACR system also recommends management by an ultrasound specialist or imaging follow-up, which was not retrievable verbatim from a fetched source (recorded in blanks).	Low risk, 1% to less than 10% risk of malignancy (stated as 1-9% in the corroborating source).	okfonte Risk band from Front Pediatr 2023 (PMC10030612) ('O-RADS 3: low-risk category (1% to <10% risk of malignancy)') corroborated by JAMA Netw Open 2022 (PMC9185186) ('O-RADS US 3 was 4.5% (<10%; expected)') and appliedradiology.com ('1-9%', 'MRI may be valuable'); descriptors from the reproduced ACR O-RADS US Risk Stratification Table (PMC9185186 Figure 1) and JAMA Table 2 subcategory rows
4	Intermediate risk of malignancy Intermediate-risk lesion: e.g., multilocular cyst 10 cm or larger (or any size with color score 4), multilocular cyst with irregular wall/septation, unilocular cyst with a solid component and 0-3 papillary projections (any color score), multilocular cyst with a solid component and color score 1-2, or a smooth-contoured solid lesion with color score 2-3.	—	Intermediate risk, 10% to less than 50% risk of malignancy.	okfonte Risk band from Front Pediatr 2023 (PMC10030612) ('O-RADS 4 intermediate-risk category (10% to <50% risk of malignancy)') corroborated by JAMA Netw Open 2022 (PMC9185186) ('O-RADS US 4, 11.6%; 10%-50% expected') and appliedradiology.com ('10-<50%'); descriptors from the reproduced ACR O-RADS US Risk Stratification Table (PMC9185186 Figure 1) and JAMA Table 2 subcategory rows
5	High risk of malignancy High-risk lesion: e.g., unilocular cyst with 4 or more papillary projections (any color score), multilocular cyst with a solid component and color score 3-4, smooth-contoured solid lesion with color score 4, any solid lesion with irregular outer contour (any color score), or any O-RADS 3-5 lesion accompanied by ascites and/or peritoneal nodules.	—	High risk, 50% or greater risk of malignancy.	okfonte Risk band from Front Pediatr 2023 (PMC10030612) ('O-RADS 5: high-risk category (>50% risk of malignancy)') corroborated by JAMA Netw Open 2022 (PMC9185186) ('O-RADS 5, 65.6%; >50% expected') and appliedradiology.com ('>50%'); descriptors from the reproduced ACR O-RADS US Risk Stratification Table (PMC9185186 Figure 1) and JAMA Table 2 subcategory rows

Referências cruzadas

encaminha paraO-RADS MRI. Ovarian-Adnexal Reporting and Data System, MRIIndeterminate adnexal lesions on ultrasound are escalated to O-RADS MRI.

fronteira compartilhadaBI-RADS. Breast Imaging Reporting and Data System, 5th editionShares the ACR Reporting and Data System framework that BI-RADS established.

Histórico de versões

Data	Evento	Detalhe	Situação
2020-01-01	published	O-RADS US consensus guideline published. evidência	confirmado

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