Post fine‐needle aspiration near total infarction of Warthin tumor with squamous metaplasia: A diagnostic pitfall

Abstract

Warthin tumor (WT) is the second commonest tumor of the parotid gland, preferentially involving the lower pole. 1 It usually affects elderly males with increased risk in smokers. 2 Fine-needle aspiration (FNA) is widely used as initial diagnostic modality for palpable salivary gland lesions. FNA may induce metaplastic changes in the form of commonly seen squamous metaplasia or rarely as mucinous metaplastic epithelium, which are accompanied by necrosis, inflammation, and/or fibrosis. 3 Such tumors have been