System: Chest
Section: Signs
Tags: 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 articles:

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

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

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