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Honeycombing

Honeycombing refers to the computed tomographic (CT) manifestation of diffuse pulmonary fibrosis (usual interstitial pneumonia). CT demonstrates clustered cystic air spaces (between 0.3-1.0 cm in diameter), which are usually subpleural and basal in distribution. The walls of the cysts are well-defined and often thick (1-3 mm 4). Honeycombing is an irreversible finding in interstitial lung disease and associated with a poor prognosis.

Differential diagnosis

Etymology

The term “honeycomb lung” is thought to have originated in the 19th century in Germany and is thought to have  first appeared in 1949 in a study by N Oswald and T Parkinson 5.

See also


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