RT Book, Section A1 Bianchi, Diana W. A1 Crombleholme, Timothy M. A1 D'Alton, Mary E. A1 Malone, Fergal D. SR Print(0) ID 1106401000 T1 Neuroblastoma T2 Fetology: Diagnosis and Management of the Fetal Patient, 2e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-144201-5 LK obgyn.mhmedical.com/content.aspx?aid=1106401000 RD 2024/10/14 AB Key PointsMost common solid tumor in infants.Neuroblastomas are generally diagnosed by sonography in the third trimester, and can be cystic, solid, or both.The differential diagnosis includes hydronephrosis, multicystic kidney, obstructive duplex collecting system, Wilms’ tumor, mesoblastic nephroma, and adrenal hemorrhage.Neuroblastoma in situ may be responsible for many prenatally diagnosed cystic neuroblastomas, and may be due to delayed regression of neuroblasts.83% of prenatally diagnosed neuroblastomas will be localized stage I or II disease.Neuroblastoma is stage III or IVS in only 16% of cases.Poor prognostic signs, such as N-myc amplification, occur in less than 5% of cases.Prenatal complications such as fetal hydrops, hepatomegaly, and maternal hypertension occur rarely.