Sulak Osman, Cankara Neslihan, Malas Mehmet A, Cetin Esra, Desdicioglu Kadir
Department of Anatomy, Faculty of Medicine, Suleyman Demirel University, 32260 Isparta, Turkey.
Saudi Med J. 2008 Jan;29(1):30-5.
To evaluate the development of the normal urachus during the fetal period.
The study was carried out on 149 human fetuses (male 87, female 62) aged between 9-40 weeks, obtained with families' consent from Isparta Maternity and Children's Hospital, Isparta, Turkey, between 1997 and 2002. The study was carried out in the Department of Anatomy, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey during 2004. The type of the urachus was assessed and was classified. The length, antero-posterior depth, and the transverse width of the urachus were measured. Finally, the relationship between the urachus and umbilical arteries was evaluated during the fetal period, whether they ran parallel to each other.
Two types of urachus were observed: the inverted funnel (84%) and tubular (16%). The length, depth, and width of the urachus increased with gestational ages in all cases. A 2% variation was observed in the neighborhood between urachus and umbilical artery.
Comparing our results with previous studies, the development of the urachus can be different in neonates and children. The mean urachus length was 14.8 -/+ 7.7mm during this period. The inverted funnel type is the most common type in our study. Hence, there can be some differences in the relationship between the urachus and umbilical arteries. The data obtained in the present study can be used as base knowledge related to the development of the urachus, and for evaluating the urachus in utero pediatric urology, radiology, pediatric surgery, and fetopathology.
评估胎儿期正常脐尿管的发育情况。
本研究对149例9至40周龄的人类胎儿（男87例，女62例）进行，这些胎儿于1997年至2002年间在土耳其伊斯帕尔塔市的伊斯帕尔塔母婴医院经家属同意获取。2004年在土耳其伊斯帕尔塔市苏莱曼·德米雷尔大学医学院解剖学系开展研究。评估脐尿管的类型并进行分类。测量脐尿管的长度、前后深度和横向宽度。最后，评估胎儿期脐尿管与脐动脉之间的关系，即它们是否相互平行。
观察到两种类型的脐尿管：倒漏斗型（84%）和管状型（16%）。所有病例中，脐尿管的长度、深度和宽度均随孕周增加。脐尿管与脐动脉之间的邻近区域观察到2%的差异。
将我们的结果与先前研究进行比较，新生儿和儿童期脐尿管的发育可能有所不同。在此期间，脐尿管平均长度为14.8±7.7毫米。倒漏斗型是我们研究中最常见的类型。因此，脐尿管与脐动脉之间的关系可能存在一些差异。本研究获得的数据可作为与脐尿管发育相关的基础知识，用于评估胎儿期小儿泌尿外科、放射学、小儿外科和胎儿病理学中的脐尿管。
