Palpation thyroiditis (multifocal granulomatour folliculitis).

Area of Science:

• Endocrinology
• Surgical Pathology
• Histopathology

Background:

• Thyroid gland inflammation can manifest in various forms.
• The prevalence and etiology of specific inflammatory patterns require further elucidation.

Purpose of the Study:

• To describe disseminated inflammatory lesions in the thyroid.
• To investigate the potential cause and clinical significance of these lesions, specifically multifocal granulomatous folliculitis.

Main Methods:

• Histopathological examination of thyroid tissues from surgical resections and autopsies.
• Experimental induction of similar lesions in canine thyroid glands.
• Correlation of lesion presence with patient demographics and clinical history.

Main Results:

• Multifocal granulomatous folliculitis was identified in over 83% of surgically removed thyroids.
• Lesions were found in hospitalized autopsy cases but not in those who died at home.
• Identical lesions were experimentally induced in dogs via thyroid manipulation.

Conclusions:

• The findings suggest that palpation thyroiditis, resulting from traumatic injury or rupture of thyroid follicles during gland palpation, is a common occurrence.
• Palpation thyroiditis likely has minimal clinical significance.
• The potential association with iatrogenic metastasis of thyroid carcinoma warrants further investigation.