title: Sonography of adrenal glands in neonates and children: changes in appearance with age.
abstract: The sonographic appearance of the normal adrenal gland in children varies with age. In newborns, the cortex is large and hypoechoic, whereas the medulla is relatively small and hyperechoic. With increasing age, the cortex becomes smaller and the medulla relatively larger. The cortex remains hypoechoic and the medulla hyperechoic until age 5-6 months, by which time the gland has become hyperechoic and smaller, with poor or absent sonographic differentiation between cortex and medulla. After 1 year of age, the appearance of the gland is similar to that of the adult gland, with straight or concave borders and a hypoechoic character.
authors.forename: H
authors.initials: H
authors.lastname: Kangarloo
authors.forename: M J
authors.initials: MJ
authors.lastname: Diament
authors.forename: R H
authors.initials: RH
authors.lastname: Gold
authors.forename: C
authors.initials: C
authors.lastname: Barrett
authors.forename: B
authors.initials: B
authors.lastname: Lippe
authors.forename: M
authors.initials: M
authors.lastname: Geffner
authors.forename: M I
authors.initials: MI
authors.lastname: Boechat
authors.forename: R B
authors.initials: RB
authors.lastname: Dietrich
authors.forename: G M
authors.initials: GM
authors.lastname: Amundson
mesh_terms: D000293:Adolescent; D000311:Adrenal Glands / Q000033:anatomy & histology*; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D014463:Ultrasonography