Primary localized amyloidosis causing urethral stricture disease: A mimicker of urothelial carcinoma

Abstract

We describe a case of mild lower urinary tract symptoms and microscopic hematuria in a 53-year-old-male with hypertension found to have urethral stricture disease suspicious for urothelial carcinoma. During the investigation, cystoscopy and biopsy demonstrated eosinophilic amyloid proteins consistent with primary localized urethral amyloidosis. No systemic evidence of amyloidosis was demonstrated. Following a trial of conservative management with serial dilatations, the patient elected to proceed with surgical management by anterior urethroplasty using an excision and primary anastomosis technique. The patient has done well with resolution of his symptoms and no further recurrence of urethral amyloid disease at ongoing follow up.