hi I have an 8 year old boy who was born with a large café a la on his foot and a couple of minor ones. I have had him checked by a genetics and they checked him out when he was two and didn't believe he had NF1 and I had him checked again before he was 4. They still didn't believe he had enough to diagnose him so they also gave him a blood test that came back negative which was a massive relief. However I have noticed another brown patch on his arm a few weeks ago and my heart sunk. It isn't round or oval shaped its kind of jiggered and irregular. He also has patchy brown and white skin due to eczma. Do you think I should be concerned or could this be nothing? Help Im freaking out and feel sick