Normal variant and congenital anomalies.- Urinary tract infection.- Renal cystic disease.- Renal parenchymal neoplasms.- Lesions of the renal pelvicalyceal system, ureter, bladder and urethra.- Vascular diseases.- Retroperitoneum.- Adrenal gland.- Male reproductive system: Prostate , seminal vesicles and testicular lesions.- Female reproductive system: Uterine body, uterine cervix, ovary, vagina.- Nephrological, systemic and non-urinary diseases with urinary tract involvement.