PMC8418269_01
Axial CT with mass measuring ~11 cm x 10 cm.
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F1
She underwent CT scan of the abdomen (Figures 1-3) and pelvis that demonstrated enlarged left periaortic lymph nodes, mild left hydronephrosis, narrowing of the sigmoid colon, and a large multi-cystic mass in the midline pelvis measuring 12.5 x 9.9 x 11.7 cm.
Sagittal CT with mass measuring ~9 cm x 7.5 cm.
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F2
She underwent CT scan of the abdomen (Figures 1-3) and pelvis that demonstrated enlarged left periaortic lymph nodes, mild left hydronephrosis, narrowing of the sigmoid colon, and a large multi-cystic mass in the midline pelvis measuring 12.5 x 9.9 x 11.7 cm.
Coronal CT with mass measuring ~12.5 cm x 8.5 cm.
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F3
She underwent CT scan of the abdomen (Figures 1-3) and pelvis that demonstrated enlarged left periaortic lymph nodes, mild left hydronephrosis, narrowing of the sigmoid colon, and a large multi-cystic mass in the midline pelvis measuring 12.5 x 9.9 x 11.7 cm.
Endoscopic evidence of narrowing due to external compression in sigmoid colon.
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F4
Due to the concern for sigmoid stenosis and history of intermittent bloody bowel movements she also underwent colonoscopy (Figures 4, 5) that showed stenosis due to external compression with mild mucosal ischemic changes without intraluminal lesion.
Mucosal ischemia at level of stenosis from external compression.
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F5
Due to the concern for sigmoid stenosis and history of intermittent bloody bowel movements she also underwent colonoscopy (Figures 4, 5) that showed stenosis due to external compression with mild mucosal ischemic changes without intraluminal lesion.
Gross pathology demonstrating mass with intimate association to sigmoid colon with involved mesentery and ileum resection. Posterior view.
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F6
Gross pathology (Figures 6, 7) revealed primary peritoneal carcinosarcoma measuring 7.5 x 6 x 4.5 cm.
Gross pathology demonstrating mass with intimate association to sigmoid colon with involved mesentery and ileum resection. Anterior view.
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F7
Gross pathology (Figures 6, 7) revealed primary peritoneal carcinosarcoma measuring 7.5 x 6 x 4.5 cm.
Squamous portion of the tumor. Demonstrates keratinization and intracellular bridges. There is a variation in size of the nuclei, there is nuclear atypia and prominent nucleoli.
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F8
Micro pathology (Figures 8-11) revealed much of the tumor consisting of malignant glands with a variable cuboidal to tall columnar lining and overtly malignant nuclear features.
Chondroid portion of the tumor as well as cartilaginous matrix and various shapes/sizes of chondrocytes.
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F9
Micro pathology (Figures 8-11) revealed much of the tumor consisting of malignant glands with a variable cuboidal to tall columnar lining and overtly malignant nuclear features.
Spindle cell sarcoma component of the tumor.
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F10
Micro pathology (Figures 8-11) revealed much of the tumor consisting of malignant glands with a variable cuboidal to tall columnar lining and overtly malignant nuclear features.
Adenocarcinoma features with gland formation by cuboidal to columnar cells. Nuclei with intracytoplasmic mucin droplets and some very large, atypical nuclei are seen.
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F11
Micro pathology (Figures 8-11) revealed much of the tumor consisting of malignant glands with a variable cuboidal to tall columnar lining and overtly malignant nuclear features.