title: Resin-Induced Colonic Pseudotumor: Rare Complication from Chronic Use of Potassium Binders in a Hemodialysis Patient.
abstract: Potassium-binding resins are widely used in the treatment of hyperkalemia, mostly in the acute setting. Gastrointestinal adverse events, although reported, are not frequently seen due to its short course of use. This report describes a case involving an end-stage renal disease patient on hemodialysis who developed a colonic mass after being on sodium polystyrene sulfonate chronically for persistent hyperkalemia. Gastrointestinal symptoms developed late during the treatment rather than early as reported previously in the literature. This mass was mistaken for a carcinomatous lesion, which initiated an extensive work-up as well as hospitalization that nearly resulted in a subtotal colectomy.
authors.affiliation: Division of Nephrology and Hypertension, Brookdale University Hospital and Medical Center, Brooklyn, NY 11212, USA.
authors.forename: Mary
authors.initials: M
authors.lastname: Bui
authors.affiliation: Division of Nephrology and Hypertension, Brookdale University Hospital and Medical Center, Brooklyn, NY 11212, USA.
authors.forename: Shyan-Yih
authors.initials: SY
authors.lastname: Chou
authors.affiliation: Division of Nephrology and Hypertension, Brookdale University Hospital and Medical Center, Brooklyn, NY 11212, USA.
authors.forename: Pierre
authors.initials: P
authors.lastname: Faubert
authors.affiliation: Division of Nephrology and Hypertension, Brookdale University Hospital and Medical Center, Brooklyn, NY 11212, USA; Division of Hospital Medicine, Yale-New Haven Hospital, New Haven, CT 06510, USA.
authors.forename: Pablo
authors.initials: P
authors.lastname: Loarte
authors.affiliation: Department of Medicine/Cardiology Division, Woodhull Medical Center, Brooklyn, NY 11206, USA; Medicine Department, NYU School of Medicine, New York, NY 10016, USA.
authors.forename: Ronny
authors.initials: R
authors.lastname: Cohen