Patient: In April 2007, a lump was found on the child’s back immediately next to the spine. After going to the surgery clinic of Zhejiang Children’s Hospital and having an ultrasound, the doctor diagnosed it as a lipoma, but then said that it was not an obvious lipoma and recommended surgery to remove it. Considering that the baby was only 2 weeks old at that time and the lump was not very big, no treatment measures were taken. Recently, I noticed that this lump is a bit bigger and bulging, and I haven’t gone for ultrasound yet, so I would like to ask if I must have it surgically removed. I would like to check again to confirm the diagnosis. Will the surgery leave any sequelae or could the lump be another lesion? The first thing is to determine the diagnosis. In addition to the physical examination, ultrasound and magnetic resonance examination are the best means of examination, and magnetic resonance examination can rule out the relationship between the mass and the spinal cord, making the surgery safer.