Fig. 1
From: Sonographic evaluation of adrenal size in neonates (23 to 41 weeks of gestation)
(a) Ultrasonographic scan of the right adrenal region of a representative neonate obtained immediately after birth by the longitudinal antero-lateral approach. Sonographic appearances of the right adrenal gland of a representative in each group: (b) group 1: a neonate born at 23 weeks of gestation, (c) group 2: a neonate born at 34 weeks of gestation, and (d) a neonate born at 39 weeks of gestation. The border of the adrenal gland was traced manually to calculate the adrenal gland area