1. Use of a convex probe-endobronchial US endoscope in EUS of the rectum and FNA 
Rayburn Rego, MD, Shyam Dang, MD, Catherine Lewis, MD 
Gastrointestinal Endoscopy 
Volume 77, Issue 1, Pages (January 2013)
DOI: /j.gie
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Figure 1 MRI pelvis. Arrow indicates perirectal mass.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

3. Figure 2 EUS image of needle in mass.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

4. Figure 3
Rectum FNA: positive for malignant cells. Diff Quick smear: high-power image showing groups of malignant cells. The cells are large and have a high nucleus-to-cytoplasm ratio.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

5. Figure 4
Immunohistochemical stains showing that the tumor cells are strongly positive for cytokeratin (CK) 7 and negative for cytokeratin 20 and prostate-specific antigen. This immunohistochemical staining pattern and morphology is in keeping with urothelial carcinoma.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions