Spindle cell lesion of thyroid: A potential pitfall in FNAC diagnosis

摘要

We present a case of a patient with Riedel's thyroiditis, originally misdiagnosed as malignant. A repeat FNAC cast doubt on the original diagnosis and spared the patient from radical treatment. From the literature, it is apparent that this is a common pitfall and we would like to highlight the importance of adequate FNA sampling. Current views on aetiology of RT as part of the hyper IgG4 disease, with other systemic fibrosing/inflanrmatory processes are discussed.