Reversed halo sign

From RadsWiki

Jump to: navigation, search


[edit] Discussion of Reversed halo sign

  • The reversed halo sign is defined as central ground-glass opacity surrounded by denser consolidation of crescentic (forming more than three fourths of a circle) or ring (forming a complete circle) shape of at least 2 mm in thickness.
  • The reversed halo sign is a relatively specific sign for cryptogenic organizing pneumonia, although it is only seen in of fifth of patients with the disease.

[edit] Images

Patient #1

[edit] See Also

[edit] External Links

[edit] References for Reversed halo sign