title: [A Case of Hemodialysis-Associated Pelvic Amyloidoma Mimicking Renal Cancer-Associated Etiology].
abstract: Patients with renal insufficiency receiving long-term hemodialysis often develop so-called hemodialysis amyloidosis characterized by systemic β 2-microglobulin amyloid lesions, while patients with renal cell carcinoma may develop amyloid A(AA) amyloidosis. Herein, we present a 67-year-old man on thirty-yearlong hemodialysis who was diagnosed to have left renal cell carcinoma coincident with a large spaceoccupying lesion adjacent to the psoas muscle in the pelvic cavity. An ultrasound-guided percutaneous needle biopsy was performed at the time of laparoscopic radical nephrectomy. The pathological work-up on the needle biopsy specimen revealed that the lesion was not an AA amyloidoma but a β2-microglobulin amyloidoma, which is a rare manifestation of hemodialysis amyloidosis.
authors.affiliation: The Department of Urology, Shizuoka General Hospital.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Takada
authors.affiliation: The Department of Urology, Shizuoka General Hospital.
authors.forename: Kanji
authors.initials: K
authors.lastname: Nagahama
authors.affiliation: The Department of Urology, Shizuoka General Hospital.
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Nakashima
authors.affiliation: The Department of Urology, Shizuoka General Hospital.
authors.forename: Koji
authors.initials: K
authors.lastname: Yoshimura
authors.affiliation: The Department of Urology, Shizuoka General Hospital.
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Nishio
authors.affiliation: The Department of Nephrology, Shizuoka General Hospital.
authors.forename: Ken
authors.initials: K
authors.lastname: Matsuo
authors.affiliation: The Department of Nephrology, Shizuoka General Hospital.
authors.forename: Noriko
authors.initials: N
authors.lastname: Mori
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D064847:Multimodal Imaging; D010388:Pelvis / Q000473:pathology; D006435:Renal Dialysis / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed