Espírito Santo Rita, Alcafache Margarida, Almeida Sofia Rodrigues, Tavares Ana
Department of Pediatrics, Hospital Santa Maria-CHLN, Academic Medical Center of Lisbon, Lisboa, Portugal.
Pediatrics Department, Hospital Dona Estefânia-Centro Hospitalar Lisboa Central EPE, Lisboa, Portugal.
BMJ Case Rep. 2016 Jul 26;2016:bcr2016215374. doi: 10.1136/bcr-2016-215374.
The urachus is an intra-abdominal fibrous remnant of the allantois. The non-involution of the allantois can result in urachal anomalies. The abnormal appearance of the umbilicus may be a sign of such anomalies. We have observed 3 cases of term neonates with atypical appearance of the umbilical stump, all of which manifested urachal anomalies, as documented by ultrasound scan. These appearances are rarely described in the literature, and seem to regress at around 2 months. Therefore, it is important that healthcare professionals should be aware of the possible implications of atypical umbilical stumps, evaluate each case accordingly and, if an urachal anomaly is diagnosed, refer the patient to a paediatric surgery centre, as such malformations carry an underlying risk of infection or malignancy.
脐尿管是尿囊的腹内纤维残余物。尿囊未退化可导致脐尿管异常。脐部外观异常可能是此类异常的一个迹象。我们观察到3例足月新生儿脐残端外观不典型，经超声扫描证实均表现为脐尿管异常。这些表现很少在文献中被描述，且似乎在2个月左右消退。因此，医护人员应意识到不典型脐残端可能带来的影响，对每例病例进行相应评估，若诊断为脐尿管异常，应将患者转诊至小儿外科中心，因为此类畸形存在潜在的感染或恶性肿瘤风险。
