Ureteral amyloidosis in the context of lymphoplasmacytic lymphoma and systemic amyloidosis

• DOI: 10.1016/j.eucr.2021.101919
• Publication Date: 2021-10-25T19:20:30Z
• Authors: María Riaza Montes; Beatriz Teresa An...; Garazi Letamendi ...; José Antonio Gall...
• Keywords: Lymphoplasmacytic Lymphoma; Concomitant; Urine cytology

Ureteral amyloidosis is a rare entity and of interest to urologists, hematologists, radiologists, pathologists because it mimics urothelial cell carcinoma clinically, endoscopically radiologically. A pre-operative ureteroscopy or surgical biopsy required, essential exclude systemic amyloidosis. We report male who was diagnosed with IIIA stage lymphoplasmacytic lymphoma associating concomitant hematuria. Urine cytology negative computerized tomography urography (CTU) scan evidenced bilateral, proximal medium, ureteral stenosis wall thickening. Diagnosis suspected confirmed laparoscopic due stenosis, being positive for Congo red stain. Patient underwent chemotherapy.