Riedel thyroiditis
Alerts and Notices
Synopsis
Most patients typically present with a nonpainful, rapidly growing thyroid mass often associated with airway obstruction, dysphonia, hoarseness, hypoparathyroidism, dysphagia, or stridor.
Physical examination reveals a large goiter with a hard or woody texture. At the time of presentation, approximately one-third of patients present with extracervical manifestations of multifocal fibrosis, including retroperitoneal, mediastinal, pulmonary, or lacrimal gland fibrosis; orbital pseudotumor; sclerosing cholangitis; or fibrosing parotitis.
Codes
ICD10CM:E06.5 – Other chronic thyroiditis
SNOMEDCT:
89024000 – Riedel's thyroiditis
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Painless thyroiditis
- Drug-induced thyroiditis – interferon-alpha, interleukin-2, amiodarone, and lithium can cause thyroiditis
- Postpartum thyroiditis
- Amyloid goiter
- Diffuse lipomatosis (see benign symmetric lipomatosis)
- Sarcoidosis
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Therapy
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References
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Last Reviewed:05/08/2019
Last Updated:02/06/2020
Last Updated:02/06/2020