Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Jan 14;8(2):e00521. doi: 10.1002/rcr2.521

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 The Authors. Respirology Case Reports published by John Wiley & Sons Australia, Ltd on behalf of The Asian Pacific Society of Respirology

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Case 1. Histology of computed tomography‐guided percutaneous lung biopsy specimen before erlotinib therapy (A–C). (A) Haematoxylin and eosin, (B) TTF‐1 and CK5/6, and (C) p40 and napsin A staining. Histology of transbronchial lung biopsy specimen after erlotinib therapy, suggesting squamous cell transformation (D–F). (D) Haematoxylin and eosin, (E) TTF‐1 and CK5/6, and (F) p40 and napsin A staining. Histology of transbronchial lung biopsy specimen after combination chemotherapy (G–I). (G) Haematoxylin and eosin, (H) TTF‐1 and CK5/6, and (I) p40 and napsin A staining.