case_images: PMC5306986_01
case_images: The 4 mm firm nodule visualized in rectum.
case_images: CRIGM2017-3795482.001.jpg
case_images: PMC5306986_01_CRIGM2017-3795482.001.jpg
case_images: fig1
case_images: Boston Bowel Preparation Scale, a 1 cm serrated adenomatous polyp in the transverse colon that was removed with hot snare polypectomy, and a firm 4 mm nodule in the rectum that was removed with biopsy forceps (Figure 1). Biopsy of the rectal nodule revealed a granular cell tumor with positive periodic acid-Schiff (PAS) staining (Figure 2).
case_images: Rectal nodule biopsy (400x) revealing tumor cells arranged in sheets with small round-to-oval nuclei consistent with granular cell tumor on periodic acid-Schiff stain.
case_images: CRIGM2017-3795482.002.jpg
case_images: PMC5306986_01_CRIGM2017-3795482.002.jpg
case_images: fig2
case_images: Boston Bowel Preparation Scale, a 1 cm serrated adenomatous polyp in the transverse colon that was removed with hot snare polypectomy, and a firm 4 mm nodule in the rectum that was removed with biopsy forceps (Figure 1). Biopsy of the rectal nodule revealed a granular cell tumor with positive periodic acid-Schiff (PAS) staining (Figure 2).
case_images: Biopsy revealing positive immunohistochemical staining for S-100 protein.
case_images: CRIGM2017-3795482.003.jpg
case_images: PMC5306986_01_CRIGM2017-3795482.003.jpg
case_images: fig3
case_images: Immunohistochemical staining for S-100 protein was positive as well (Figure 3).