Modern Pathology

FIGURE 4

FROM:

Selected Problems in Fine Needle Aspiration of Head and Neck Masses

Michael W Stanley

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FIGURE 4.

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This aspiration from a benign salivary gland duct-obstructive lesion due to sialolithiasis shows a background of mucous with scattered clusters of epithelial cells. Paradoxically, such cell clusters may be more numerous in aspirations of duct-obstructive lesions than in smears prepared from the mucoepidermoid carcinomas. Furthermore, duct-obstructive lesions may yield greater degrees of cytologic atypia than is frequently noted in mucoepidermoid carcinoma aspirations. In this example of a benign duct-obstructive lesion, this cell cluster shows nuclear crowding with loss of orientation and a tendency toward chromatin clumping and clearing (Papanicolaou stain, 400 times).

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