GATA3 expression in the solid cell nest of thyroid.

Solid cell nest (SCN) of thyroid is a benign histomorphological mimicker of papillary microcarcinoma. Previous studies have elucidated a few immunohistochemical markers of SCN that aid in its distinction from papillary microcarcinoma. The positivity of GATA3 in SCN has been demonstrated only recently. We also document GATA3 positivity in three cases of SCN.