①☆lymphoid aggregates with germinal centers
Hurthle cells(Askanazy or oxyphil cells)=enlarged ephthelial cells with eosinophilic cytoplasm and prominent nucleoli are commonly seen
②thyroid replaced by fibrous tissue and inflammatory infiltrate
③granulomatous inflammation→ subacute granulomatous thyroiditis
④tall, crowded follicular epithelial cells(projecting into follicular lumen)
endocrinology
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