Differential diagnostics - Hashimoto's thyroidtis (II)
De Quervain's thyroiditis - Case 2
Hashimoto's thyroiditis - Case 70

These two cases have a very similar cytological presentation. If we are aware about the clinical picture, we can find that the 3 multinucleated cells are partly composed of epitheloid cells in the left case, and we will not misinterpret the epitheloid granuloma-like figure in the right case. However, if the cytopathologist is not aware of the patient's history, it is very difficult or even impossible to interpret the cytological patterns correctly.
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