OHSU

Endocrine

Thyroid

Sonographic Normal Thyroid Lobe Measurements (cm)

Age Transverse (cm) Longitudinal (cm) AP (cm)
Infants & Young Children 1-1.5 2-3 0.2-1.2
Adolescents & Adults 2-4 5-8 1-2.5

 

References:

  1. Cole-Beuglet C.  Ultrasonography of the thyroid, parathyroid and neck masses.  In: Sarti DA, ed. Diagnostic ultrasound: text and cases.  Chicago: Year Book Medical Publishers; 1987:608-618. (Modified)