Hello Doctor , My sister-in law is 15 week pregnant , 25/F age, 4.11 , 50kg Her USG report says she has well-defined hypoechoic space occupying lesion in posterior and lower part of the uterus, size measuring 70.2*54.3*28.8mm . Please advise us. Will it grow along with the baby? Your advise will be highly appreciated. Thanks a lot. Bimla