Umbilical cord cyst 23 weeks

Today I had my anatomy scan and my doctor told me she found a small cyst on the umbilical cord. She didn’t seem concerned and told me not to worry that she’d have me in with maternal medicine in the next two weeks to monitor it. I of course did the worst thing and googled it (I know horrible decision). Now I’m panicked. I’ve had all the genetic testing done and all came back clear and he’s growing right on track and nothing that they are worried about, but I just need to know if others have had this experience this far in? I’m 23 weeks so I feel like it’s late to be finding it.