title: Pulmonary Leukocytoclastic Vasculitis as an Initial Presentation of Myelodysplastic Syndrome.
abstract: Systemic vasculitis involving the lung is a rare manifestation of myelodysplastic syndrome (MDS), and secondary vasculitis is considered to have poor prognosis. A 44-year-old man presented with fever and dyspnea of 1 month duration. A chest radiograph revealed bilateral multiple wedge shaped consolidations. In addition, the results of a percutaneous needle biopsy for non-resolving pneumonia were compatible with pulmonary vasculitis. Bone marrow biopsy was performed due to the persistence of unexplained anemia and the patient was diagnosed with MDS. We reported a case of secondary vasculitis presenting as non-resolving pneumonia, later diagnosed as paraneoplastic syndrome of undiagnosed MDS. The cytopenia and vasculitis improved after a short course of glucocorticoid treatment, and there was no recurrence despite the progression of underlying MDS.
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Seung Hyun
authors: SH
authors: Lee
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Jae Hyung
authors: JH
authors: Kim
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Sejin
authors: S
authors: Park
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Chang Youn
authors: CY
authors: Won
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Joo-Hyun
authors: JH
authors: Lee
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Seong Yoon
authors: SY
authors: Yi
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Hye Kyeong
authors: HK
authors: Park
authors: Department of Pathology, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Sun Hee
authors: SH
authors: Chang
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Hoon
authors: H
authors: Jung
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Sung-Soon
authors: SS
authors: Lee
authors: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors: Hyeon-Kyoung
authors: HK
authors: Koo
keywords: Myelodysplastic Syndromes; Paraneoplastic Syndromes; Pneumonia; Vasculitis, Leukocytoclastic, Cutaneous