The transverse cerebellar diameter in the second trimester is unaffected by Down syndrome.
Cerebellar hypoplasia is a consistent finding in necropsy studies of children and adults affected by Down syndrome. The transverse cerebellar diameter was measured in 23 second-trimester fetuses with Down syndrome. All the measurements were within the normal range for gestational age.
Hill
L M
LM
Department of Ultrasound, Magee-Womens Hospital, University of Pittsburgh, PA 15213.
Rivello
D
D
Peterson
C
C
Marchese
S
S
D002531:Cerebellum / Q000000981:diagnostic imaging / Q000196:embryology*; D004314:Down Syndrome / Q000000981:diagnostic imaging / Q000196:embryology*; D005260:Female; D005333:Fetus / Q000033:anatomy & histology; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D012189:Retrospective Studies; D014463:Ultrasonography