title: A Case of Pulmonary MALT Lymphoma Arising from Lymphocytic Interstitial Pneumonitis.
abstract: Pulmonary mucosa-associated lymphoid tissue-derived (MALT) lymphoma is a rare disease. This disorder is considered to be a model of antigen-driven lymphoma, which is driven either by autoantigens or by chronic inflammatory conditions. Low-grade B-cell MALT lymphoma may develop from a nonneoplastic pulmonary lymphoproliferative disorder, such as lymphocytic interstitial pneumonitis (LIP). A recent estimate predicts that less than 5% of LIP patients acquire malignant, low-grade, B-cell lymphoma. In Korea, there has been no previous report of malignant low-grade, B-cell lymphoma, acquired from LIP. Here, we present the case of a patient with LIP that developed into pulmonary MALT lymphoma, six years after diagnosis.
authors.affiliation: Department of Internal Medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea School of Medicine, Bucheon, Korea.
authors.forename: Ki Hoon
authors.initials: KH
authors.lastname: Park
authors.forename: Soon Seog
authors.initials: SS
authors.lastname: Kwon
authors.forename: Myung Hee
authors.initials: MH
authors.lastname: Chung
authors.forename: Jeana
authors.initials: J
authors.lastname: Kim
authors.forename: Hee Jung
authors.initials: HJ
authors.lastname: Lee
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Min
authors.forename: Yong Hyun
authors.initials: YH
authors.lastname: Kim