<s>[INST] Hi, I have a small lump on the lower left leg, it's about the size of a dime. I've had it for many years and I have a doctor look at it years ago, she said it was nothing. I'm concerned, because it is now pulsing or tingling and seems to have gotten a little bigger. It does not hurt. What could it be? [/INST] Hello,The lump can be anything but the most likely ones are lipoma and neurofibroma. It is best to get evaluated by a surgeon so that he can perform a FNAC from the swelling to reveal the diagnosis.Dr. Souvik Adhikari </s>