The Enlarged Fetal Thyroid: Sonographic and Clinical Findings.

Authors

Danielle M Richman, Sara Ahmadi, Sarah C Lassey, Carol B Benson, Mary C Frates

Published in

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. Oct 08, 2026. Epub Oct 08, 2026.

Abstract

Retrospective review of our OB ultrasound database identified 17 fetuses with enlarged thyroid. Fourteen had a maternal risk factor, most commonly current or prior Graves' thyroiditis. In addition to the enlarged thyroid, abnormalities were identified in 6/17 (35.3%) fetuses. Treatment included adjusting the dose of propylthiouracil, methimazole, or levo-thyroxine, intraamniotic thyroxine, or nothing. Follow-up showed stable fetal thyroid size in 9 and decreased size in 5. Imagers should be aware that fetal goiter can result from maternal hyper- or hypothyroidism. Careful assessment and monitoring of mother and fetus are needed to determine the appropriate cause and treatment of fetal goiter.

PMID:
42850964
Bibliographic data and abstract were imported from PubMed on 09 Oct 2026.

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