# Chinese doctors achieve medical milestone treating unborn baby’s lung tumour before birth > Chinese doctors have achieved a medical breakthrough by shrinking a lung tumour in an unborn baby at 22 weeks of pregnancy. Using a fine ablation needle guided by real-time ultrasound, they applied microwave energy to d… Published: 2026-10-07 · Desk: Latest · Source: Tezzfeed · By: Samiaa Jahan Happy Chinese doctors have achieved a remarkable medical breakthrough after successfully treating and shrinking a lung tumour in an unborn baby while the foetus was still inside the mother’s womb. The rare procedure marks a significant development in prenatal medicine and demonstrates how advanced medical technology can now be used to treat serious conditions before a baby is even born. The procedure was carried out when the pregnancy had reached 22 weeks. At that stage, doctors identified a serious abnormality in the developing baby’s lungs that had the potential to grow rapidly and cause major complications during pregnancy. Instead of waiting until after birth, medical teams decided to intervene while the baby was still in the womb. The baby had been diagnosed with microcystic congenital pulmonary airway malformation, commonly known as CPAM. The condition is a rare developmental abnormality in which abnormal tissue develops in the lungs before birth. Depending on its size and location, the abnormal growth can interfere with the normal development of the lungs and may place pressure on nearby organs. In severe cases, CPAM can increase significantly in size during pregnancy. A rapidly growing lesion can occupy valuable space inside the chest and potentially interfere with the baby’s breathing system and overall development. It can also create complications for the mother and baby during pregnancy and delivery. Because of these risks, doctors closely monitor affected pregnancies and, in selected severe cases, consider treatment before birth. For this particular case, doctors used a minimally invasive technique involving a fine ablation needle. The needle was carefully guided into the affected area using real-time ultrasound imaging. This allowed the medical team to monitor the position of the needle and the tumour throughout the procedure while reducing the risk of affecting healthy surrounding tissue. The treatment used microwave energy to generate intense heat inside the abnormal tissue. The heat was directed at the tumour, causing the targeted tissue to be destroyed from within. By focusing the energy on the affected area, doctors aimed to reduce the size of the tumour while minimising damage to the surrounding developing lung tissue. Performing such a procedure before birth requires an extremely high level of precision. The foetus is extremely small at 22 weeks, while the developing organs and surrounding tissues are highly sensitive. Doctors therefore had to carefully balance the need to treat the abnormal growth with the need to protect the baby and maintain the pregnancy. Real-time ultrasound imaging played a crucial role throughout the operation. It provided doctors with continuous visual guidance, allowing them to determine the position of the needle and monitor the treatment area. The use of imaging technology also helped the medical team perform the procedure through a minimally invasive approach rather than relying on more extensive surgery. The landmark procedure was jointly carried out by medical teams from Shenzhen Baoan Women’s and Children’s Hospital and the Chinese University of Hong Kong. Their collaboration brought together specialists with expertise in fetal medicine, obstetrics, imaging and minimally invasive treatment. The successful procedure represents an important step forward in the treatment of serious fetal conditions. Traditionally, many abnormalities identified during pregnancy could only be treated after delivery, leaving doctors with limited options when a condition posed an immediate threat to the developing baby. Advances in fetal medicine are gradually changing that situation, allowing specialists to intervene earlier in carefully selected cases. The treatment of CPAM before birth is particularly significant because the condition can behave differently from one pregnancy to another. Some cases remain small and may not cause major problems, while others can grow quickly and become life-threatening. Early identification through prenatal imaging allows doctors to assess the severity of the condition and determine whether intervention may be necessary. The Chinese medical teams’ achievement highlights the growing possibilities of fetal intervention and the role of modern imaging and energy-based technologies in prenatal care. While such procedures remain highly specialised and are not suitable for every pregnancy, successful cases can provide valuable knowledge for doctors treating similar conditions in the future. More broadly, the procedure demonstrates how medicine is increasingly moving toward treating certain diseases before birth rather than waiting until after delivery. It also highlights the importance of multidisciplinary collaboration, as complex fetal procedures require specialists from multiple medical fields to work together. For the family involved, the procedure offered an opportunity to address a potentially serious problem at a critical stage of pregnancy. For the medical community, it represents another step toward expanding the possibilities of prenatal treatment. As fetal medicine continues to advance, procedures such as this could help doctors manage complex conditions earlier and improve outcomes for babies diagnosed with serious abnormalities before birth. The successful treatment of the unborn baby’s lung tumour therefore stands not only as a remarkable medical achievement but also as an example of how technology, expertise and careful intervention can create new possibilities in modern healthcare. Original reporting: https://www.tezzfeed.com/ HTML: https://tezzfeed.com/latest-news/chinese-doctors-achieve-medical-milestone-treating-unborn-babys-lung-tumour-before-birth-1791356414433 Bangladesh desk: https://tezzfeed.com/bangladeshi-news.md Agent map: https://tezzfeed.com/llms.txt