title: [A case of malignant lymphoma in the pelvis suspected to be a neurogenic tumor].
abstract: A 70-year-old man visited a urological clinic with a chief complaint of pollakiuria, which was refractory to various medications. Pelvic magnetic resonance imaging (MRI) revealed a mass 6 cm in diameter immediately next to the left side of the bladder. The patient was referred to our hospital for further examination. Since he had a past history of neurofibroma of cauda equina, we suspected neurofibromatosis type 1. (18)Fluorodeoxyglucose (FDG)-positron emission tomography (PET) demonstrated a high accumulation of FDG in the pelvic mass. Under a diagnosis of neurogenic tumor, surgery was performed. As an examination of frozen section during the surgery led us to suspect a sarcoma, the tumor was excised radically. The pathological examination demonstrated diffuse large B cell lymphoma.
authors.affiliation: The Department of Urology, Osaka University Graduate School of Medicine.
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Soda
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Okumi
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Miyagawa
authors.forename: Norifumi
authors.initials: N
authors.lastname: Naka
authors.forename: Akira
authors.initials: A
authors.lastname: Tsujimura
authors.forename: Norio
authors.initials: N
authors.lastname: Nonomura
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis*; D008297:Male; D009456:Neurofibromatosis 1 / Q000175:diagnosis*; D010388:Pelvis