Idiopathic Cervical Lymphocele Mimicking Congenital Lymphatic Malformation.

Summary: Imagine waking up with a growing lump on your neck, but it doesn't hurt at all. That is exactly what happened to a 30-year-old man. Doctors usually see these fluid-filled lumps (called lymphoceles) after a surgery, but this one appeared out of nowhere! At first, it looked like a rare birth defect. By using an ultrasound and testing the fluid, doctors figured out what it really was. Instead of doing surgery, they treated it with a special medicine injection called sclerotherapy. It worked perfectly, and the lump hasn't come back in over five years!