Figure 2.

Nuclear receptor subfamily 4 group A member 3 (NR4A3) immunohistochemistry in other primary oncocytic salivary gland neoplasms in cytology specimens (×100). Cell block preparations from fine-needle aspirates from oncocytoma (A, B), low-grade mucoepidermoid carcinoma (C, D), and Warthin tumor (E, F) were stained with H&E or immunostained with NR4A3. Nuclear NR4A3 was not identifiable in any of these oncocytic/oncocyotid salivary gland neoplasms. Nonspecific cytoplasmic granular NR4A3 staining was seen in the case of low-grade mucoepidermoid carcinoma.