What pattern is shown in this image?

Honeycombing

Paraseptal emphysema

Pneumothorax

Bronchiectasis

Author’s solution

In this image honeycombing is identified. Note that the cystic air spaces:
  •  are clustered
  •  share clearly definable walls
  •  occur in several layers - the first layer is in immediate contact with the pleura
In early honeycombing a few, isolated, single-layered cystic air spaces can be seen

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