A Pediatric Radiology Textbook and Pediatric Radiology Digital Library
Pediatric Follicular Thyroid Adenoma
Etiology: Benign neoplasm consisting of differentiated follicular cells
Imaging US: — Thin peripheral halo — Predominantly cystic or mixed cystic and solid lesion — Isoechoic or predominantly anechoic — Homogenous or heterogeneous — Absence of internal flow or predominantly peripheral flow is associated with reduced probability of thyroid follicular carcinoma
Note: Cannot be reliably differentiated from follicular thyroid carcinoma on US
DDX: Follicular thyroid carcinoma
Complications:
Treatment: Surgical
Clinical: — Increased incidence in women — Five times more common than follicular thyroid carcinoma
Radiology Cases of Follicular Thyroid Adenoma
Transverse ultrasound of the thyroid (above) shows a single small nodule in the right lobe of the thyroid and a large nodule in the left lobe of the thyroid. Longitudinal ultrasound image of the left lobe of the thyroid (below) shows there are three nodules in the left lobe of the thyroid. Each thyroid nodule has a thin peripheral halo, is predominantly solid and homogenously isoechoic and has an absence of internal flow.
