Riedel thyroiditis in a patient with graves disease

Area of Science:

• Endocrinology
• Pathology
• Rheumatology

Background:

• Riedel thyroiditis is a rare, infiltrative inflammatory thyroid disease.
• It can be associated with systemic fibrotic conditions, Hashimoto thyroiditis, and Graves disease.
• The co-occurrence of Riedel thyroiditis and Graves disease is exceptionally rare.

Purpose of the Study:

• To report a rare case of Riedel thyroiditis in a patient with a history of Graves disease.
• To document the association between these two distinct thyroid conditions.

Main Methods:

• Case report of a 57-year-old woman.
• Clinical presentation included an enlarging neck mass and voice changes.
• Surgical thyroidectomy followed by histopathologic examination.

Main Results:

• Histopathologic examination confirmed Riedel thyroiditis.
• The patient had a 30-year history of diagnosed Graves disease.
• This represents a rare instance of Riedel thyroiditis evolving from antecedent Graves disease.

Conclusions:

• The association between Riedel thyroiditis and Graves disease is exceedingly uncommon.
• This case underscores the importance of considering Riedel thyroiditis in patients with a history of Graves disease presenting with thyroid changes.
• Further research may elucidate the potential pathogenetic links between these conditions.