case_images: PMC11255414_01
case_images: (A) Hematoxylin and eosin images (original magnification, a1 x10, a2 x20) showing a thymoma composed of B3 histologic type (predominant, about 80%) and B2 (about 20%). B2 component thymoma showing mixture of small lymphocytes and large, polygonal epithelial cells, some of which are forming clusters of 3 or more epithelial cells (original magnification, a3 x20). B3 component thymoma showing cellular lobules comprised of large polygonal neoplastic cells and a few small lymphocytes (original magnification, a4 x20). (The slides were digitized with an Aperio AT2 scanner with 40x optics). (B) The immunohistochemical images staining for p40, p63, CK AE1/AE3, TdT, CD5, CD117, ki67 (original magnification, x10). (The slides were digitized with an Aperio AT2 scanner with 40x optics). (C) Hematoxylin and eosin image (original magnification, c1 x0.3, c2 x4, c3 x10, cd x20) showing extensive neoplastic infiltration composed of large poorly differentiated epithelial cells, round to oval-shaped with focal squamous aspects and some highly pleomorphic. (The slides were digitized with an Aperio AT2 scanner with 40x optics). (D) The tumor stains for cytokeratin AE1-AE3, Ki67, PD-L1, GLUT-1, p40, p53 and p63 proteins and it's negative for CD117/ c-Kit and CD5 (original magnification, 10x). (The slides were digitized with an Aperio AT2 scanner with 40x optics).
case_images: fimmu-15-1423800-g001.jpg
case_images: PMC11255414_03_fimmu-15-1423800-g001.jpg
case_images: f1
case_images: CD5 and CD117/c-Kit were negative ( Figures 1C, D ).
case_images: PMC11255414_02
case_images: (A) Right supraclavicular lymphadenopathy. (B) Pararectal metastasis from thymoma at CT. (C) Prostate cancer. (D) Rectal cancer.
case_images: fimmu-15-1423800-g002.jpg
case_images: PMC11255414_06_fimmu-15-1423800-g002.jpg
case_images: f2
case_images: In October 2022, the patient was diagnosed with primary rectal adenocarcinoma and underwent radical surgery ( Figure 2D ).
case_images: PMC11255414_03
case_images: (A) Hematoxylin and eosin images (original magnification, a1 x10, a2 x20) showing a thymoma composed of B3 histologic type (predominant, about 80%) and B2 (about 20%). B2 component thymoma showing mixture of small lymphocytes and large, polygonal epithelial cells, some of which are forming clusters of 3 or more epithelial cells (original magnification, a3 x20). B3 component thymoma showing cellular lobules comprised of large polygonal neoplastic cells and a few small lymphocytes (original magnification, a4 x20). (The slides were digitized with an Aperio AT2 scanner with 40x optics). (B) The immunohistochemical images staining for p40, p63, CK AE1/AE3, TdT, CD5, CD117, ki67 (original magnification, x10). (The slides were digitized with an Aperio AT2 scanner with 40x optics). (C) Hematoxylin and eosin image (original magnification, c1 x0.3, c2 x4, c3 x10, cd x20) showing extensive neoplastic infiltration composed of large poorly differentiated epithelial cells, round to oval-shaped with focal squamous aspects and some highly pleomorphic. (The slides were digitized with an Aperio AT2 scanner with 40x optics). (D) The tumor stains for cytokeratin AE1-AE3, Ki67, PD-L1, GLUT-1, p40, p53 and p63 proteins and it's negative for CD117/ c-Kit and CD5 (original magnification, 10x). (The slides were digitized with an Aperio AT2 scanner with 40x optics).
case_images: fimmu-15-1423800-g001.jpg
case_images: PMC11255414_03_fimmu-15-1423800-g001.jpg
case_images: f1
case_images: CD5 and CD117/c-Kit were negative ( Figures 1C, D ).
case_images: (A) Right supraclavicular lymphadenopathy. (B) Pararectal metastasis from thymoma at CT. (C) Prostate cancer. (D) Rectal cancer.
case_images: fimmu-15-1423800-g002.jpg
case_images: PMC11255414_06_fimmu-15-1423800-g002.jpg
case_images: f2
case_images: In October 2022, the patient was diagnosed with primary rectal adenocarcinoma and underwent radical surgery ( Figure 2D ).
case_images: PMC11255414_04
case_images: PMC11255414_05
case_images: (A) Right supraclavicular lymphadenopathy. (B) Pararectal metastasis from thymoma at CT. (C) Prostate cancer. (D) Rectal cancer.
case_images: fimmu-15-1423800-g002.jpg
case_images: PMC11255414_06_fimmu-15-1423800-g002.jpg
case_images: f2
case_images: In October 2022, the patient was diagnosed with primary rectal adenocarcinoma and underwent radical surgery ( Figure 2D ).
case_images: Timeline of treatments.
case_images: fimmu-15-1423800-g003.jpg
case_images: PMC11255414_05_fimmu-15-1423800-g003.jpg
case_images: f3
case_images: Timeline of treatments is summarized in  Figure 3 .
case_images: PMC11255414_06
case_images: (A) Right supraclavicular lymphadenopathy. (B) Pararectal metastasis from thymoma at CT. (C) Prostate cancer. (D) Rectal cancer.
case_images: fimmu-15-1423800-g002.jpg
case_images: PMC11255414_06_fimmu-15-1423800-g002.jpg
case_images: f2
case_images: In October 2022, the patient was diagnosed with primary rectal adenocarcinoma and underwent radical surgery ( Figure 2D ).