Pediatric Necrotizing Pneumonia

  • Etiology: Staphylococcus aureus or Streptococcus pneumoniae bacteria
  • Imaging US: Intrapulmonary collections of air surrounded by consolidated lung
  • Imaging CT:
    — Consolidated lung parenchyma that is hypoenhancing or non-enhancing with contrast which can progress to necrosis of lung and lung abscess
    — Pleural empyema
  • DDX:
  • Complications: Lung abscess and pleural empyema
  • Treatment: Antibiotics
  • Clinical:

Radiology Cases of Necrotizing Pneumonia

CXR and CT of necrotizing pneumonia
CXR shows near complete opacification of the left hemithorax. Axial and coronal CT with contrast of the chest shows dense collapsed left upper lobe lobe and less dense collapsed left lower lobe with an even lower density cavity forming within it and a large left pleural effusion without definite pleural enhancement.