This is usually seen in interstitial lung diseases (ILDs), also called as diffuse parenchymal
lung disease. Of all the ILDs, the honey comb pattern is most common in idiopathic interstitial pneumonias or in idiopathic nonspecific interstitial pneumonia (NSIP). As the name suggests, the pneumonia like condition of the lung has no known cause.
Honeycomb changes are also seen in autoimmune diseases such as sarcoidosis, lupus, rheumatoid arthritis, Sjogren’s syndrome, scleroderma etc.