title: Mummified Thyroid Syndrome.
abstract: OBJECTIVE
  The purpose of this article is to highlight the various sonographic characteristics that should help to differentiate a restructured benign collapsed thyroid nodule from histologically proven thyroid carcinoma by different imaging means, including Doppler sonography, and fine-needle aspiration cytologic analysis.
  
  
  CONCLUSIONS
  Benign thyroid nodules may display morphologic changes over time, which can have misleading sonographic features suggestive of malignancy. Precise knowledge of certain sonographic imaging features, such as regular eggshell calcifications, peripheral hypoechoic or hypoechoic rim, posterior shadowing, and absence of intranodular vascularization, and meticulous comparison with previous images showing thyroid nodule shrinkage over time are useful for reaching the correct final diagnosis. Fine-needle aspiration cytologic assessment of such initially suspicious thyroid nodules and sonographic follow-up contribute to establishing the final diagnosis of benign thyroid findings. Knowledge of the elements described should help to identify the so-called mummified thyroid nodule and avert surgical excision.
authors.affiliation: 1 Centre d'Imagerie Médicale, 47 Blvd duPont Rouge, 15000 Aurillac, France.
authors.forename: Alexis
authors.initials: A
authors.lastname: Lacout
authors.affiliation: 2 Centre de Pathologie, Aurillac, France.
authors.forename: Carole
authors.initials: C
authors.lastname: Chevenet
authors.affiliation: 3 Interventional Radiology Department, Polyclinique Les Fleurs, Ollioules, France.
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Marcy
mesh_terms: D000328:Adult; D000368:Aged; D044963:Biopsy, Fine-Needle; D003937:Diagnosis, Differential; D054459:Elasticity Imaging Techniques; D005260:Female; D006801:Humans; D061705:Image-Guided Biopsy; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013577:Syndrome; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D016606:Thyroid Nodule / Q000000981:diagnostic imaging* / Q000473:pathology; D018608:Ultrasonography, Doppler; D018084:Ultrasonography, Interventional
keywords: Doppler ultrasound; TIRADS; cystic-like thyroid nodule; mummy; thyroid cancer; thyroid nodule; thyroid nodule shrinkage