Honeycombing is a CT imaging descriptor referring to clustered cystic air spaces (between 3-10 mm in diameter, but occasionally as large as 2.5 cm) that are usually subpleural and basal in distribution. They can be subdivided into:
Honeycombing consists of enlarged airspaces with thick fibrotic walls lined by bronchiolar epithelium and often filled with mucin and inflammatory cells 6.
History and 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.