K-TIRADS

Korean Thyroid Imaging Reporting and Data System

Korean ultrasound risk stratification of thyroid nodules.

vigenteKorean Society of Thyroid Radiology2016US

1K-TIRADS 1, no nodule 2K-TIRADS 2, benign 3K-TIRADS 3, low suspicion 4K-TIRADS 4, intermediate suspicion 5K-TIRADS 5, high suspicion

Aplicar o K-TIRADS a um achado

Descreva o achado como no laudo. A resposta aponta uma das categorias publicadas, com a probabilidade e o trecho que a decide.

Categorias

Reescritas a partir da fonte e citadas

1 de 5

K-TIRADS 1, no nodule

No nodule: the thyroid contains no discrete nodule on ultrasound.

CondutaNot applicable (no nodule to sample).

RiscoMalignancy risk is not applicable because no discrete thyroid nodule is present to stratify.

verificadoKorean Thyroid Imaging Reporting and Data System (K-TIRADS)PMC4842857 (Shin et al., Korean J Radiol 2016;17(3):370) Table 2, category labelled 'no nodule'

2 de 5

K-TIRADS 2, benign

Benign: spongiform nodule, partially cystic nodule with a comet-tail artifact, or a pure (simple) cyst.

CondutaDiagnostic FNA may be considered selectively when the nodule is 2 cm or larger; otherwise FNA is not indicated.

RiscoEstimated malignancy risk under about 3% (under roughly 1% for an isoechoic spongiform nodule).

verificadoKorean Thyroid Imaging Reporting and Data System (K-TIRADS)PMC4842857 Table 2 (benign category) and Indications/Management text

3 de 5

K-TIRADS 3, low suspicion

Low suspicion: a partially cystic or iso-/hyperechoic nodule that lacks all three suspicious ultrasound features (microcalcification, non-parallel/taller-than-wide orientation, spiculated or microlobulated margin).

CondutaFNA recommended when the nodule is 1.5 cm or larger.

RiscoEstimated malignancy risk approximately 3-15%.

verificadoKorean Thyroid Imaging Reporting and Data System (K-TIRADS)PMC4842857 Table 2 (low-suspicion category) and Indications text

4 de 5

K-TIRADS 4, intermediate suspicion

Intermediate suspicion: a solid hypoechoic nodule without any suspicious feature, or a partially cystic / iso- or hyperechoic nodule that has any one of the three suspicious ultrasound features.

CondutaFNA recommended when the nodule is 1 cm or larger.

RiscoEstimated malignancy risk approximately 15-50%.

verificadoKorean Thyroid Imaging Reporting and Data System (K-TIRADS)PMC4842857 Table 2 (intermediate-suspicion category) and Indications text

5 de 5

K-TIRADS 5, high suspicion

High suspicion: a solid hypoechoic nodule that has any of the three suspicious ultrasound features (microcalcification, non-parallel/taller-than-wide orientation, or spiculated/microlobulated margin).

CondutaFNA recommended when the nodule is 1 cm or larger; selective FNA may be considered above 0.5 cm.

RiscoEstimated malignancy risk above about 60%.

verificadoKorean Thyroid Imaging Reporting and Data System (K-TIRADS)PMC4842857 Table 2 (high-suspicion category) and Indications text

Lógica de decisão estruturada

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

Referência, não é dispositivo médico. Confira a publicação primária vigente. O radiologista que assina o laudo continua autor e responsável.