Riedel thyroiditis

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Riedel thyroiditis is a rare benign pathology of the thyroid gland.

It is also known as invasive fibrous thyroiditis.[1]

General

Clinical features:[1]

  • Extremely rare.
  • Women > men.
  • Usually smokers.
  • May be associated with retroperitoneal fibrosis.
  • May be hypothyroid.
  • +/-Obstructive symptoms.

Microscopic

Features:

  • Fibrosis.
  • Specimen often fragmented as it was difficult to remove.

DDx:

See also

References

  1. 1.0 1.1 Fatourechi, MM.; Hay, ID.; McIver, B.; Sebo, TJ.; Fatourechi, V. (Jul 2011). "Invasive fibrous thyroiditis (Riedel thyroiditis): the Mayo Clinic experience, 1976-2008.". Thyroid 21 (7): 765-72. doi:10.1089/thy.2010.0453. PMID 21568724.