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Amylase crystalloids in salivary gland lesions: Report of a case with a review of the literature

2001; Wiley; Volume: 25; Issue: 1 Linguagem: Inglês

10.1002/dc.2003

8755-1039

Fernando López-Rı́os, Teresa Díaz‐Bustamante, Anastasio Serrano-Egea, Juan Jiménez, Pedro de Agustín,

Head and Neck Anomalies

Abstract Several types of crystalloids may be found in fine‐needle aspiration cytology of salivary gland lesions. Amylase crystalloids (sometimes referred to as nontyrosine crystalloids) are tabular structures with frequent pointed ends that have received little attention until recent years. We report on a parotid cyst containing the latter type of crystalloids in a 51‐yr‐old white woman. The cytologic and radiologic findings were diagnostic of sialolithiasis. To the best of our knowledge, amylase crystalloids have been observed only in benign salivary gland lesions. Although this statement may be helpful in the diagnostic workup of patients presenting with parotid lumps, we do not recommend rendering a specific diagnosis based on the presence of such crystalloids. Good clinical and radiological correlation, as well as close follow‐up, is mandatory in this setting. Diagn. Cytopathol. 25:59–62, 2001. © 2001 Wiley‐Liss, Inc.