FNA may lead to ischemic injury resulting in the infarction of WT.
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Infarcted WT may demonstrate variable gross and histologic alterations that may render the diagnosis challenging at the time of frozen section evaluation.
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The histologic findings of infarcted WT include necrosis, ghosts of papillae, squamous metaplasia, cholesterol clefts, foamy macrophages, multinucleated giant cell reaction, necrotizing granulomas, and fibrosis.
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Potential pitfalls in the diagnostic consideration of infarcted WT include squamous cell carcinoma, mucoepidermoid carcinoma, lymphoepithelial cysts, and chronic sialadenitis.
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