On pulmonary high-resolution computed tomography, reticular pattern is characterised by innumerable interlacing shadows suggesting a mesh.
Comment:
The constituents of the reticular pattern may be all or some of the following: interlobular septal thickening, intralobular interstitial thickening, wall cysts of honeycombing, peribronchovascular interstitial thickening and traction bronchiectasis/bronchiolectasis