lymphocytic interstitial pneumonitis

lym·pho·cyt·ic in·ter·sti·tial pneu·mo·ni·tis

a rare disease characterized by interstitial accumulation of lymphocytes in the lungs and late fibrosis; usually a result of a lymphoma, occasionally seen in AIDS, especially in children; sometimes seen as an autoimmune disorder. Synonym(s): lymphocytic interstitial pneumonia, lymphoid interstitial pneumonia