Linear light echogenicity with a small area of cystic change

That is what my ultrasound found. The first 3 words mean that the ultrasound didn't receive as strong of a signal as other areas at other times. The doctor doesn't really know what it all means; she doesn't even know if it could cause problems for Mason. But Mason should've got this scan a few months ago, and the technician told me before she started the ultrasound that Mason would be so big now that he could obscure the results (hence the light echogenicity, I think). I am a little freaked out, but my motherly intuition hasn't spiked out of control, so I think it's nothing, but we'll see in a few weeks when I go back for another ultrasound with a specialist. Thanks in advance for your prayers :)