In terms of origin among 35 PAs found, according to Francisco Canervalle classification, the ratio of type I (originating from common vesical trunk), type II (originating from anterior trunk of internal iliac artery), type III (originating from obturator artery), type IV (originating from internal pudendal artery) and type V (other origins) are, respectively: 20%; 2.9%; 34.3%; 31.4% and 11.4%.