Posted by: Chamrian | 2007/07/26


mesenteric cyst

IThank-you first of all for your help with my first question.
went for another scan yesterday after finding out that our baby( 28 weeks pregnant) had a mass in her stomach. They have diagnosed it as a mesenteric cyst. On Friday, it was 1.7cm. Yesterday it was over 3cm. Is this comman in unborn babies? They said it will probally pop on it's own before she is born. Doc, do you see alot of these cases, and is that the usual outcome? I would really like to know if it is common. They guy doing the ultrasound said that it is nothing to worry about, and when it pops it will be absorbed by her body otherwise it will be drained at birth. Does thid sound correct to you?

It is located just above her bladder.

Thank-you for your help

Expert's Reply



Cysts are fluid filled membranes, and mesenteric cysts occur in the membrane supporting the baby's intestines.Mesenteric cysts in infants are very unusual. They are completely benign, but may cause some symptoms in when your baby has been born such as swelling of the abdomen and occasionally cause a twist to occur in the intestine.These cysts do not always disppear by themselves. Occasionally they may need to be removed at an operation but the operation is very successful.If your baby is a litlle girl, it is necessary to be certain that the cyst is in the mesentary and is not an ovarian cyst, so follow-up ultra-sounds are necessary.

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