Hello, moms, little ones! My sister's baby was diagnosed with mulicoy…

Hello, moms, little ones! My sister's baby was diagnosed with mulicoystic in the womb at 2 and 3 trimesters. We hoped it would resolve itself. But she gave birth, we did an ultrasound - this diagnosis is still relevant. The largest are 3 and 2.8 mm, the others are small. Has anyone had such a situation or do you know someone who has? Please share your stories. We are going through a lot of pain ?