Cytomorphological Spectrum of Thyroiditis: A Review of 110 Cases

Table 2

Frequency of various cytological features in Hashimoto’s thyroiditis.

Cytomorphological features	Number of cases	Percentage (%)
Increased background lymphocytes	100	100
Lymphocytic infiltration of follicular cell clusters	79	79
Hurthle cells	64	64
Mild anisonucleosis	19	19
Few giant cells	18	18
Histiocytes	12	12
Scanty colloid	8	8
Epithelioid cells	6	6
Plasma cells	5	5
Fire flares	3	3
Eosinophils	1	1