Classification of pulmonary sequestration

Case contributed by Alexander Nikolaev

Pulmonary sequestration


Classification of pulmonary sequestration:

  • intralobar
  • extralobar
    • intrathoracic
    • subdiaphragmatic

Case Discussion

Overall, sequestration preferentially affects the lower lobes. 60% of intralobar sequestrations affect the left lower lobe, and 40% the right lower lobe. Extralobar sequestrations almost always affect the left lower lobe, however, ~10% of extralobar sequestrations can be subdiaphragmatic.

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