[Inflammatory diseases of the thyroid gland]

Area of Science:

• Endocrinology
• Immunology
• Pathology

Background:

• Thyroiditis represents a significant portion, approximately 20%, of all thyroid diseases.
• Understanding the diverse origins and presentations of thyroiditis is crucial for accurate diagnosis and management.

Purpose of the Study:

• To review and classify the various forms of thyroiditis.
• To detail the clinical features and distinct morphologies associated with thyroiditis.
• To elucidate the etiological origins, particularly the prevalence of immunogenic versus non-immunogenic causes.

Main Methods:

• Comprehensive literature review of existing studies on thyroiditis.
• Analysis of classification systems for thyroiditis.
• Synthesis of data on clinical presentations and pathological findings.
• Evaluation of etiological factors, focusing on immunogenic and non-immunogenic pathways.

Main Results:

• Thyroiditis encompasses a spectrum of inflammatory thyroid conditions.
• The majority of thyroiditis cases are immunogenic in origin.
• Non-immunogenic thyroiditis, including infectious and iatrogenic causes, is exceptionally rare.

Conclusions:

• Thyroiditis classification, clinical features, and morphology are key diagnostic considerations.
• The predominant role of immunogenic factors in thyroiditis pathogenesis is confirmed.
• Non-immunogenic thyroiditis warrants consideration but is infrequently encountered.