Morphologic features of the anencephlaic adrenal gland in early pregnancy

ES Gray, DR Abramovich - American journal of obstetrics and gynecology, 1980 - Elsevier
The adrenal glands of 12 anencephalic fetuses and 17 norma lfetuses of 11 to 21 weeks'
gestation were examined histometrically. The volume of the adrenal gland occupied by the
fetal zone in the anecncephalic fetuses was 57.5% compared with 76.5% in normal fetuses.
The fetal zone in anecncephaly showed involution in all speciemsn,. which suggests that
this invoulution begins well before 20 weeks' gestation.