Indwara zifata interstitial ni itsinda rya diffuse parenchymal disorder zifitanye isano nuburwayi nimpfu nyinshi.Nkikimenyetso cya alveolar epithelial selile yangirika no kuvuka bundi bushya, KL-6 ikoreshwa muburyo bwihuse, bworoshye, bwubukungu, busubirwamo kandi butagutera, buruta uburyo bwa kera nkibihaha bihanitse cyane CT, alveolar lavage na biopsy yibihaha.Urwego rwa KL-6 muri serumu y'abarwayi rushobora gufatwa nk'ikimenyetso cyo kwirinda hakiri kare indwara y'ibihaha.