Prolonged and Recurrent De Quervain's Thyroiditis After Thyroid Fine Needle Aspiration

Area of Science:

• Endocrinology
• Pathology

Background:

• De Quervain's thyroiditis (subacute thyroiditis) is a transient inflammatory condition of the thyroid gland.
• Diagnosis relies on clinical presentation, physical exam, laboratory tests, and imaging, with fine needle aspiration (FNA) generally reserved for unclear cases or suspicion of malignancy.

Observation:

• A 75-year-old male presented with symptoms consistent with De Quervain's thyroiditis and an inflammatory thyroid nodule.
• Thyroid fine needle aspiration (FNA) was performed for further evaluation of the nodule.
• The patient experienced a prolonged clinical course following the FNA, presumed to be due to exacerbated thyroid inflammation.

Findings:

• Thyroid fine needle aspiration (FNA) may potentially worsen inflammation in cases of De Quervain's thyroiditis.
• Distinguishing De Quervain's thyroiditis from other causes of thyroid pain is crucial for appropriate management.

Implications:

• This case underscores the importance of accurate diagnosis to avoid potentially detrimental procedures like FNA in subacute thyroiditis.
• Serial thyroid ultrasounds may be a valuable tool to monitor disease progression and potentially obviate the need for FNA, thereby preventing complications.