System: Chest
Section: Signs
Tag: lungs
Modality: CT (lung window)

- “ The CT halo sign depicts peri-lesion ground-glass attenuation. A myriad of causes but specific to this case, the ground-glass attenuation is likel...”

Used in the following article:

  • Halo sign (chest) - “ The halo sign in chest imaging is a feature seen on lung window settings (typically HRCT), ground glass opacity surrounding a pulmonary nodule or ...”
  • Haemorrhagic pulmonary metastases - “ Haemorrhagic pulmonary metastases are those which tend to be complicated by pulmonary haemorrhage within them, resulting in characteristic imaging...”

View full size version of Probable peritumoral haemorrhage in metastatic melanoma: CT halo sign

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