title: Low grade pulmonary lymphomatoid granulomatosis with an endobronchial mass.
abstract: Lymphomatoid granulomatosis (LYG) is an angiocentric and angiodestructive neoplastic proliferation of B and T lymphocytes commonly involving the lungs. Epstein-Barr virus is commonly detected in lesional cells. We report a case of a 54-year-old female with underlying monoclonal gammopathy of unknown significance who presented with a 4 week history of dyspnea and cough. Computed tomography scan of the chest showed multiple lung nodules as well as endobronchial narrowing causing atelectasis at the left upper lobe. Bronchoscopic findings revealed obstruction at the lingula segment due to endobronchial mass as a rare presentation. Bronchoscopic biopsy was diagnosed with LYG grade 1. After treatment, the endobronchial mass and lung lesions were completely resolved. However, the patient eventually evolved to malignant lymphoma after 1 year.
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Kyung Hoon
authors: KH
authors: Kim
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Jinhee
authors: J
authors: Park
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Ji Yeon
authors: JY
authors: Yoo
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Min Jae
authors: MJ
authors: Kim
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Il
authors: I
authors: Kim
authors: Division of Pulmonary Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Chin Kook
authors: CK
authors: Rhee
authors: Division of Pulmonary Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Hea Yon
authors: HY
authors: Lee
keywords: Lymphoma; Lymphomatoid Granulomatosis