1
Results: One hundred twenty patients with chronic, fibrotic HP were identified.
2
The median BAL lymphocyte count was higher in inflammatory HP compared to fibrotic HP.
3
The presence of autoimmunity in patients with chronic, fibrotic HP may portend a poorer prognosis.
4
Conclusions: Fifteen percent of patients with chronic, fibrotic HP displayed evidence of a concurrent defined autoimmune disease or autoimmune features suggestive of CTD.