Megaureter is defined as a ureter that exceeds the upper limits of normal size. Megauretere primitif chez lenfant universite cadi ayyad. The majority of cases are nonrefluxing and unobstructed. T1 obstructed megaureter in the newborn repair by temporary refluxing megaureter reimplantation.
Congenital giant megaureter cgm is an extremely rare condition, which is defined as the lumen of a ureter is congenitally, focally and segmentally dilated to more than 10 times of the normal diameter, in presence of normal bladder volume and function. Megauretere congenital obstructif primitif, traitement conservateur, traitement endoscopique. Primary megaureter is demonstrated by a straightened dilated ureter which is not tortuous. In children, any ureter greater than 7 mm in diameter is considered a megaureter it seems to us that you have your javascript disabled on your browser. Primitive megaureter pmu is defined as a congenital dilatation of the ureter or 7 mm, it can be associated with vesico ureteral reflux. Since then, a small number of patients with cgm have been reported and a pubmed search yielded less than 10 published case reports to date. Pdf almost onequarter of the children referred to a pediatric urologist for obstructive. The morphology of congenital dilatation of the ureter.
Megaureter and other congenital ureteral anomalies. The cause is thought to be aperistalsis of the distal ureter, leading to. A congenital primary megaureter encompasses causes of an enlarged ureter which are intrinsic to the ureter, rather than as a result of a more distal abnormality. A megaureter large ureter is when a ureter is wider than threeeighths of an inch. Megaureter definition of megaureter by medical dictionary. These keywords were added by machine and not by the authors. Morphological study of congenital megaureter request pdf. Congenital giant megaureter genetic and rare diseases. Normal ureteral diameter in children is rarely 5 mm ureters 7 mm are considered mgus the dilated ureter or mgu can be classified into one of four groups based on the cause of the dilatation. A megaureter is just a descriptive term meaning large ureter and is diagnosed by ultrasound.
Oman medical specialty board oman medical journal 20 vol. Congenital anomalies of the kidney and urinary tract zusammen gefasst werden. The ureteral caliber can be reduced by excising the distal redundant ureter hendren technique 10 or plication kalicinski technique, starr technique 11 to achieve a satisfactory antireflux mechanism. The first cgm was reported by chaterjee sk in 1964. This can result from an abnormality of the ureter itself primary or from the bladder being blocked secondary. The obstructive primitive megaureter of the adult is a congenital dilation of. Cakut, congenital anomalies of the kidney and urinary tract. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Traitement du megauretere congenital obstructif primitif em consulte.
Megaureter is a medical anomaly whereby the ureter is abnormally dilated. Learn about megaureter from the cleveland clinic, including symptoms, causes, types, diagnosis methods, treatment options, and complications. Megauretere primitif megauretere secondaire ureterohydronephrose. This process is experimental and the keywords may be updated as the learning algorithm improves. Obstructed megaureter in the newborn repair by temporary. Congenital megaureter is an uncommon condition which is more common in males, may be bilateral, and is often associated with other congenital anomalies. Le terme megauretere est uniquement descriptif, et designe donc une dilatation. Primary megaureter is secondary to a short aperistaltic distal segment of the ureter, resulting in. Megaureter is a common diagnosis in children referred to a pediatric urologist for urologic evaluation, representing 23% of children with urinary tract obstruction. The megaureter can be mobilized via an intravesical, extravesical, or combined approach. Once a megaureter is found, two more tests are generally performed to see if there is reflux or obstruction.