RT Book, Section
A1 Pilu, Gianluigi
A1 Malinger, Gustavo
A1 Buyukkurt, Selim
A2 Timor-Tritsch, Ilan E.
A2 Monteagudo, Ana
A2 Pilu, Gianluigi
A2 Malinger, Gustavo
SR Print(0)
ID 1138379723
T1 ANOMALIES OF THE CEREBELLUM
T2 Ultrasonography of the Prenatal Brain, 3e
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9780071613064
LK obgyn.mhmedical.com/content.aspx?aid=1138379723
RD 2024/04/23
AB KEY  POINTSA  wide  variety  of  congenital  anomalies  can  affect  the  cerebellum.  The  antenatal  findings  overlap  among  different  pathologies  and  normal  variants.  Consequently,  a  specific  diagnosis  is  often  not  possible.One  of  the  most  common  abnormal  findings  that  is  encountered  is  the  impression  of  a  communication  between  the  fourth  ventricle  and  the  posterior  cisterna  magna.  When  this  is  seen  after  20  postmenstrual  weeks'  gestation,  it  identifies  a  group  of  conditions  that  are  commonly  referred  to  as  the  Dandy-Walker  complex.Within  the  Dandy-Walker  complex,  cases  with  a  normal  appearance  of  the  vermis  and  cisterna  magna  most  frequently  have  a  normal  outcome.  Fetuses  with  an  enlarged  cisterna  magna  and/or  an  abnormal  vermis  frequently  exhibit  abnormal  development,  but  a  precise  prognosis  is  difficult  to  predict.A  large  cisterna  magna  (>  10  mm)  when  isolated,  usually  has  a  good  outcome.Other  cerebellar  anomalies  can  be  encountered,  but  the  diagnosis  is  often  difficult  or  impossible  and  the  prognosis  difficult  to  predict.