The document discusses the embryology and anomalies of the upper urinary tract. It covers the formation of the kidneys, ureters and collecting system during embryonic development. It also describes various anomalies that can occur, including anomalies of number, shape and fusion, ascent, rotation, vasculature and the collecting system and ureters. The anomalies are discussed in detail with references to Campbell's Urology and Langman's Medical Embryology textbooks.