Hello Dr. Wu: First of all, thank you very much for your reply! After reading your advice, we have re-established that my mother’s numbness is only below the left lumbosacral region. (The upper extremity is not working because of the fall on the left arm more than 10 years ago, and it has improved with the plaster. In view of the findings, it was determined that a sacral cyst was present and needed to be addressed. So, after carefully reading the article “CT-guided sacral cyst aspiration and decompression”, we would like to continue to bother you with a few questions: First of all, I have put my mother’s MRI films in the link below, so please help me to look at them in advance. 2. Does the surgery need to be done relatively early? The MRI results available show that the cyst is larger than the example in your article – this is a concern, will it increase quickly if a few months have passed? (Since my mother is not in very good health, my father’s idea is to take some time to recuperate, but my point is that the cysts compressing the nerves will cause the legs to atrophy and that is not good. What is your opinion? (Can this situation be slowed down or not?) The article mentions that “the average age of the 6 patients was 47 years old (26-78 years old), …… the average maximum longitudinal diameter of the cyst was 3.7 cm and the average maximum transverse diameter was 1.5 cm”, does it mean that my mother’s case is more troublesome? 3. Is this interventional treatment method you introduced currently only available at your six hospitals? Or are you the most advanced? Is “surgical treatment [including laminectomy, cystectomy or partial resection and microsurgical resection and duralplasty, etc.]” a more conservative procedure? So, this surgical treatment at your hospital is the one that has the least impact on the nerves, right? I’ve seen some presentations that cysts are prone to recurrence – I’m a little worried! 4. If I come to Shanghai for treatment recently, are there any special requirements for physical fitness? How can I make an appointment for surgery? 5. Finally, I would like to know the time and cost of the surgery. I am sorry to bother you so much. My mother has been very hardworking, and I have not been able to stay by her side for a long time in recent years, and her health problems have not been brought to my attention, so I am very guilty, and I hope to get your help and guidance to get my mother well soon! Once again, my heart’s infinite gratitude! Bamboozled reply: Xiao Wang: Hello! Your question is answered as follows: 1, your mother’s MRI examination film I have seen, is a typical sacral cyst, and the tension is relatively high. 2, cyst enlargement is generally slow, surgery should be done earlier to reduce the compression of nerves and relieve symptoms. Your mother’s cyst is not big, and there are bigger ones in my surgery cases. 3, cysts traditional surgical treatment for a long time, not conservative treatment, is to cut the spine of the surgery, surgery is more traumatic. 4.Interventional treatment of sacral cyst is a new technology, there are a few reports abroad, the article “CT-guided sacral cyst puncture angiography and fluid extraction and decompression” is a summary of my early clinical experience, published in the Journal of Interventional Radiology, it may be the earlier reported literature in China, I did not go to check the new, whether other hospitals carry out the technology, I have not found out. 5. Interventional treatment is to use a fine needle to puncture into the cyst and extract the fluid to achieve the treatment purpose of releasing the nerve compression. Because it is minimally invasive and similar to the injury of intramuscular injection, it generally does not cause nerve damage and can be used repeatedly even if it recurs. 6.Because of the small trauma, there is generally no special physical requirement. If you come to Shanghai Sixth Hospital for treatment, you come to the ward of our department (interventional ward) for appointment first. 7.The operation time is not long, within 1 hour, but it is better to be hospitalized for a week to prevent infection and other complications.