### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, My wife is pregnent with 3 month and in sonography report folloing has came out neck region shows cystic lesion of size 25*23 mm with internal septation. Definate bone defect is not seen D/D Cystic Hydroma ? meningomylocele Doctor has told for a 2nd sonograpy after 2 week. Will you pls tell me what is the risk and what is the possibilities of having that risk.

### output:

Hello, and I hope I can help you today. Cystic Aroma and Meningomyelocele are two different types of abnormalities that can be seen as a lesion in the neck region of the fetus on an ultrasound. Cystic Aroma is a fluid-filled sac that protrudes from the area of the babies neck towards the front.  The sac can resolve on its own, however fetuses with cystic aroma have an increased risk of being genetically abnormal.  The most common genetic abnormality associated with cystic aroma is Downs syn Chat Doctor. Meningomyelocele is caused by the fetus spinal cord at the neck not closing properly and some spinal cord tissue can bulge out in a sac-like structure.  This disease sometimes requires surgery for treatment of the baby when it is born. Neither of these possibilities has a very good prognosis for the baby.  The doctor wants to check another ultrasound test when the baby is a little larger to confirm the diagnosis, and then further testing of the mothers blood and/or amniocentesis will be necessary to determine the best plan of action. I hope I was able to provide you with valuable information and that I could answer your question with the information available at this time.  Your doctor will be able to explain better what these conditions are when the baby is a bit larger on your next ultrasound. I wish you and your wife the best for the rest of the pregnancy,