Batwing in Radiology


Batwing appearance on CXR:

  • Seen in severe heart failure/ severe pulmonary edema
  • It appears when PCWP >25 mm Hg
  • Location: Perihilar opacification.

Photographic negative of Batwing:

  • Seen in chronic eosinophilic pneumonia
  • Location: Peripheral/ pleural opacification.

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