case_images: PMC6556855_01
case_images: Abdominal ultrasound, transverse view, revealed doughnut or bull s' sign, a pattern of intussusception. The patient gave his written consent to report this case and his clinical images.
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case_images: Abdominal ultrasound revealed distended small bowel loops and a doughnut sign in the ileo-cecal area (Fig. 1).
case_images: Coronal CT Scan with intravenous contrast demonstrating the intussusception of the small bowel into the ascending colon with the characteristic of double configuration of the intestinal wall (yellow arrow).
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case_images: Abdominal computed tomography scan with intravenous and oral contrast was suggestive of mechanical small bowel obstruction due to ileo-colic intussusception (Fig. 2).
case_images: Surgeon performed right hemicolectomy for ileocolic intussusception due to polypoidal tumor in the terminal ileum measuring 59 x 35 x 30 mm (black arrow). C = caecum.
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case_images: The excised ileo-colic segment showed a single, large polyp in the terminal ileum, which triggered the ileal invagination into the cecum (Fig. 3).
case_images: A. Representative section from the mass showing focal ulceration of colonic mucosa (arrowhead) with lightly cellular tumor involving the submucosa (thin arrow). B. Showing haphazardly arranged thin-walled capillaries and venules (thin arrow) surrounded by myxoid stroma (arrowhead). C-E. Showing thin-walled capillaries and venules (thin arrow) surrounded by myxoid stroma consisting of scattered spindle and star- shaped cells (arrowhead). F. Showing myxoid stroma with scattered star-shaped cells (arrowhead).
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case_images: This was consistent with a benign angiomyxoma (Fig. 4).