title: A kidney-shaped polycystic mass on the back of a hemodialysis patient.
abstract: Multicystic back masses can be of infectious, metastatic, or local pre- or malignant origin. We present a case of a rapidly evolving mass in a hemodialysis patient with severe "chronic kidney disease-associated mineral bone disease" (CKD-MBD), that also highlights limitations of chest x-ray for diagnosis of bone disease.
authors.affiliation: Division of Nephrology and Hypertension Hannover Medical School Hannover Germany; Division of Cardiology Hannover Medical School Hannover Germany.
authors.forename: Julia
authors.initials: J
authors.lastname: Volkmann
authors.affiliation: Division of Nephrology and Hypertension Hannover Medical School Hannover Germany.
authors.forename: Johannes
authors.initials: J
authors.lastname: Nordlohne
authors.affiliation: Division of Nephrology and Hypertension Hannover Medical School Hannover Germany.
authors.forename: Roland
authors.initials: R
authors.lastname: Schmitt
authors.affiliation: Division of Nephrology and Hypertension Hannover Medical School Hannover Germany.
authors.forename: Sibylle
authors.initials: S
authors.lastname: von Vietinghoff
keywords: Chronic kidney disease‐related mineral bone disease; end‐stage renal disease; hemodialysis; multicystic back mass