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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: J Thorac Oncol. 2018 Dec 18;14(3):377–407. doi: 10.1016/j.jtho.2018.12.005

Figure 11.

Figure 11.

Immunostaining of cytology specimens. A) TTF1 positive adenocarcinoma in cell block specimen (by brown 3,3’-diamonobenzidine, Ventana Benchmark XT immunostainer), BE) immunostaining on Papanicolaou stained, ethanol fixed, non-cell block specimens (Leica Bond automated immunostainer); B) TTF1 positive adenocarcinoma (detection by red 3-amino-9 ethylcarbazole), C) p40 positive non-keratinizing squamous cell carcinoma, D) p40 positive benign hyperplastic basal cells underlying ciliated respiratory cells (bronchial brush cytology), E: CD56 positive small cell carcinoma with corresponding Papanicolaou stained specimen (F).