Table 1. Clinical information, imaging findings, and endoscopic appearances of juvenile ubRMS at the time of diagnosis.

	Signalment and clinical signs					Imaging findings			Endoscopy
Case number	Breed	Sex	Body weight (kg)	Age (months)	Complaints	Location	Size (mm)	Other	Shape and consistency	Ureteral papillae involvement
1	French Bouledouge	Female	12	11	Dysuria, hematuria, vesical tenesmus	Trigone	60	Monolateral pyelectasis	Grape-like	Yes (bilateral)
2	English Setter	Male	21	12	Dysuria, hematuria	Dorsal body	60	-	Solid and firm	No
3	German Shepherd	Male	33	32	Dysuria, urgency, hyporexia	Bladder neck	65 × 58 × 28	Inguinal and medial iliac lymphadenopathy, lung metastasis	Grape-like and friable	No
4	Cane Corso	Female	25	6	Dysuria, hematuria	Dorsal body	58 × 57 × 28	-	Solid and firm	No
5	Jack Russel Terrier	Female	6.5	18	Hematuria, urgency	Bladder neck	30	Regional lymphadenopathy	Grape-like	No
6	Mixed-breed	Male	17.5	26	Dysuria, vesical and rectal tenesmus	Bladder neck and urethra	30 × 23 × 20	-	Not applicable	Not applicable
7	English Setter	Female	16	24	Dysuria, hematuria	Trigone	30	Monolateral hydroureter	Grape-like and friable	Yes (bilateral)