title: Unusual case of metachronous EBV-associated B-cell and NK/T-cell lymphoma mimicking polymyositis-diagnostic challenges and pitfalls.
authors: Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore.
authors: Esther H L
authors: EH
authors: Chan
authors: Suat-Jin
authors: SJ
authors: Lu
authors: Fredrik
authors: F
authors: Petersson
authors: Kong-Bing
authors: KB
authors: Tan
authors: Wee-Joo
authors: WJ
authors: Chng
authors: Siok-Bian
authors: SB
authors: Ng
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D054391:Lymphoma, Extranodal NK-T-Cell / Q000175:diagnosis*; D016609:Neoplasms, Second Primary / Q000175:diagnosis*; D017285:Polymyositis / Q000175:diagnosis*