RT Book, Section
A1 Wells, Robert G.
SR Print(0)
ID 1148952486
T1 The Adrenal Glands
T2 Diagnostic Imaging of Infants and Children
YR 2015
FD 2015
PB McGraw-Hill Education
PP New York, NY
SN 9780071808392
LK accesspediatrics.mhmedical.com/content.aspx?aid=1148952486
RD 2024/04/19
AB The  adrenal  cortex  is  of  mesodermal  origin,  whereas  the  medulla  forms  from  ectodermal  elements.  The  primitive  adrenal  cortex  arises  from  coelomic  mesoderm  around  the  fifth  week  of  gestation.  Additional  cells  migrate  to  join  this  initial  aggregation  at  approximately  7  weeks.  This  early  adrenal  cortex  separates  from  the  peritoneal  mesothelium  by  the  end  of  the  eighth  week.  Adrenocortical  differentiation  continues  after  birth,  resulting  in  completed  formation  of  the  zona  glomerulosa,  zona  fasciculi,  and  zona  reticularis  by  about  the  age  of  3  years.