Figure 4.

Immunohistochemical features of the metastatic papillary thyroid carcinoma and primary lung adenocarcinoma. Napsin A was positive in primary lung adenocarcinoma (▲), but negative in metastatic papillary thyroid carcinoma (→) (a, b and c). Thyroglobulin was positive in metastatic papillary thyroid carcinoma (→), but negative in primary lung adenocarcinoma (▲) (d, e and f).

Xue et al. Diagnostic Pathology 2013 8:26   doi:10.1186/1746-1596-8-26
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