PDF(Pubmed)
Abstract：
UNASSIGNED: The omphalomesenteric duct (OMD) is an embryonic structure that normally undergoes obliteration during embryonic development, typically not persisting after birth. Failure of complete or partial obliteration can result in a type of malformation known as OMD remnant.
METHODS: We report a case of a 24-year-old male patient diagnosed with bowel obstruction. Abdominal computed tomography (CT) scan revealed the presence of an adhesion band. During surgery, a fibrous band connecting from the umbilicus to the mesentery of terminal ileum was found and resected. Pathological investigation confirmed the presence of an OMD remnant fibrous band.
UNASSIGNED: OMD remnant can manifest in different forms such as Meckel\'s diverticulum, umbilical polyp, OMD cyst, OMD fistula, and fibrous band, occurring in approximately 2 % of infants and often presenting symptoms in early childhood. These conditions rarely cause complications in adults. Complications may include obstruction, gastrointestinal bleeding, bowel perforation, and omphalitis which can present with symptoms such as abdominal pain, vomiting, melena, lack of defecation, umbilical discharge, and dermal manifestations. Diagnostic approaches vary depending on the type of OMD remnant and associated complications, but ultrasonography and CT scan can be useful. While asymptomatic OMD remnants generally do not require further intervention, surgical treatment is the main option for complicated and symptomatic cases.
CONCLUSIONS: OMD remnant is a rare condition in adults that can lead to complications. Given that obstruction is a common complication of OMD remnant, OMD remnant should be considered in the differential diagnosis of patients presenting with bowel obstruction.
METHODS: We report a case of a 24-year-old male patient diagnosed with bowel obstruction. Abdominal computed tomography (CT) scan revealed the presence of an adhesion band. During surgery, a fibrous band connecting from the umbilicus to the mesentery of terminal ileum was found and resected. Pathological investigation confirmed the presence of an OMD remnant fibrous band.
UNASSIGNED: OMD remnant can manifest in different forms such as Meckel\'s diverticulum, umbilical polyp, OMD cyst, OMD fistula, and fibrous band, occurring in approximately 2 % of infants and often presenting symptoms in early childhood. These conditions rarely cause complications in adults. Complications may include obstruction, gastrointestinal bleeding, bowel perforation, and omphalitis which can present with symptoms such as abdominal pain, vomiting, melena, lack of defecation, umbilical discharge, and dermal manifestations. Diagnostic approaches vary depending on the type of OMD remnant and associated complications, but ultrasonography and CT scan can be useful. While asymptomatic OMD remnants generally do not require further intervention, surgical treatment is the main option for complicated and symptomatic cases.
CONCLUSIONS: OMD remnant is a rare condition in adults that can lead to complications. Given that obstruction is a common complication of OMD remnant, OMD remnant should be considered in the differential diagnosis of patients presenting with bowel obstruction.
摘要：
■脐肠管（OMD）是一种胚胎结构，通常在胚胎发育过程中会发生闭塞，通常在出生后不坚持。完全或部分闭塞的失败可导致一种称为OMD残余的畸形。
方法：我们报告一例24岁男性患者，诊断为肠梗阻。腹部计算机断层扫描（CT）扫描显示存在粘连带。手术期间,发现并切除了从脐部连接到末端回肠肠系膜的纤维带。病理研究证实存在OMD残余纤维带。
■OMD残留物可以以不同的形式出现，例如Meckel憩室，脐带息肉,OMD囊肿,OMD瘘,和纤维带，发生在大约2%的婴儿中，经常在儿童早期出现症状。这些情况很少引起成人并发症。并发症可能包括梗阻，消化道出血,肠穿孔,和可能出现腹痛等症状的脐炎，呕吐,Melena,缺乏排便,脐带放电,和皮肤表现。诊断方法因OMD残留类型和相关并发症而异。但超声和CT扫描可能是有用的。虽然无症状性OMD残留物通常不需要进一步干预，手术治疗是复杂和有症状病例的主要选择。
结论：OMD残留在成人中是一种罕见的可导致并发症的疾病。鉴于梗阻是OMD残余的常见并发症，OMD残留应在肠梗阻患者的鉴别诊断中考虑。
方法：我们报告一例24岁男性患者，诊断为肠梗阻。腹部计算机断层扫描（CT）扫描显示存在粘连带。手术期间,发现并切除了从脐部连接到末端回肠肠系膜的纤维带。病理研究证实存在OMD残余纤维带。
■OMD残留物可以以不同的形式出现，例如Meckel憩室，脐带息肉,OMD囊肿,OMD瘘,和纤维带，发生在大约2%的婴儿中，经常在儿童早期出现症状。这些情况很少引起成人并发症。并发症可能包括梗阻，消化道出血,肠穿孔,和可能出现腹痛等症状的脐炎，呕吐,Melena,缺乏排便,脐带放电,和皮肤表现。诊断方法因OMD残留类型和相关并发症而异。但超声和CT扫描可能是有用的。虽然无症状性OMD残留物通常不需要进一步干预，手术治疗是复杂和有症状病例的主要选择。
结论：OMD残留在成人中是一种罕见的可导致并发症的疾病。鉴于梗阻是OMD残余的常见并发症，OMD残留应在肠梗阻患者的鉴别诊断中考虑。
