Worrisome histologic alterations following fine-needle aspiration of benign parotid lesions

From: Archives of Pathology & Laboratory Medicine | Date: January 1, 2000| Author: | Copyright information

Objective.-To describe the histologic changes associated with preoperative fine-needle aspiration biopsies of benign parotid lesions and the features that distinguish these changes from malignant neoplasms.

Materials and Methods.-Ten benign parotid lesions with a recent history of preoperative fine-needle aspiration were selected, including pleomorphic adenoma (4 cases), oncocytic adenoma (3 cases), myoepithelioma (1 case), Warthin tumor (1 case), and lymphoepithelial cyst (1 case).

Results-A spectrum of histologic alterations were observed. Alterations included squamous cell metaplasia (8 ...

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