A Bird's Nest

71-year-old immunocompetent individual with fever

Bhavin Jankharia

Case:

This was published as a Youtube Case of the Day 188.

71-years old immunocompetent individual presented with fever

Large lesion RUL, Atoll sign

Atoll Sign

  • Organizing pneumonia pattern
  • Infections - fungal
  • Granulomatous - tuberculosis, sarcoidosis
  • Infarcts, vasculitis

This patient has something else going on.

Bubble lucencies. Stranding and lines within the reversed halo lesion - a bird's nest

The video describes the case, the atoll sign, the bird's nest sign and the final diagnosis.

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