case_images: PMC6402437_01
case_images: Transanal local excision of the tumor.
case_images: ijgm-12-121Fig1.jpg
case_images: PMC6402437_01_ijgm-12-121Fig1.jpg
case_images: f1-ijgm-12-121
case_images: Based on this finding, the patient was scheduled for surgery, and a transanal local excision of the tumor was performed (Figure 1).
case_images: Rectal gastrointestinal stromal tumors specimen.
case_images: ijgm-12-121Fig2.jpg
case_images: PMC6402437_01_ijgm-12-121Fig2.jpg
case_images: f2-ijgm-12-121
case_images: Gross pathological examination of the specimen revealed a 4x2x1.8 cm mass (Figure 2), in which a tan-white 1.9 cm lesion was recognized on sectioning.
case_images: Microscopic features, H&E x10.. Notes: Tumor composed of spindle or polygonal cells with eosinophilic cytoplasm, parts of which are arranged like woven, vortex or in intersecting bundles.
case_images: ijgm-12-121Fig3.jpg
case_images: PMC6402437_01_ijgm-12-121Fig3.jpg
case_images: f3-ijgm-12-121
case_images: The mitotic rate was mild (<5 mitoses per 50 high-power fields), and there was no evidence of tumor cells in surgical margins (R0 excision; Figures 3 and 4).
case_images: Microscopic features, H&E x40.. Notes: Tumor composed of spindle or polygonal cells with eosinophilic cytoplasm, parts of which are arranged like woven, vortex or in intersecting bundles.
case_images: ijgm-12-121Fig4.jpg
case_images: PMC6402437_01_ijgm-12-121Fig4.jpg
case_images: f4-ijgm-12-121
case_images: The mitotic rate was mild (<5 mitoses per 50 high-power fields), and there was no evidence of tumor cells in surgical margins (R0 excision; Figures 3 and 4).
case_images: Immunohistochemical stain positive for C-KIT (x40).
case_images: ijgm-12-121Fig5.jpg
case_images: PMC6402437_01_ijgm-12-121Fig5.jpg
case_images: f5-ijgm-12-121
case_images: Immunohistochemically, neoplastic cells were diffuse and strong stained for C-KIT (CD117) and CD34 but not for smooth muscle actin (Figures 5-7).
case_images: Immunohistochemical stain positive for CD34 (x10).
case_images: ijgm-12-121Fig6.jpg
case_images: PMC6402437_01_ijgm-12-121Fig6.jpg
case_images: f6-ijgm-12-121
case_images: Immunohistochemically, neoplastic cells were diffuse and strong stained for C-KIT (CD117) and CD34 but not for smooth muscle actin (Figures 5-7).
case_images: Immunohistochemical stain negative for smooth muscle actin (x10).
case_images: ijgm-12-121Fig7.jpg
case_images: PMC6402437_01_ijgm-12-121Fig7.jpg
case_images: f7-ijgm-12-121
case_images: Immunohistochemically, neoplastic cells were diffuse and strong stained for C-KIT (CD117) and CD34 but not for smooth muscle actin (Figures 5-7).