PMC9314760_01
Computed tomography scan of the chest and Abdominopelvic illustrating. (A) Diffuse circumferential wall thickening of the sigmoid colon (arrows). (B) Perilesional lymph nodes (arrow). (C) Hepatomegaly (arrow). (D) Multiple basal lung sub-pleural nodules (arrows).
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In addition, there were multiple para-hepatic, and pulmonary lymph nodes enlargements (Figure 1).
(A) Intraoperative photo of mass (arrows). (B) Resected sigmoid segment with a polyp.
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After general anesthesia and lower midline incision, the abdominal cavity was opened, revealing a sigmoid colon attached to the abdominal wall at the right lower quadrant, a large sigmoid mass measuring about 15 cm, and multiple mesenteric and paraaortic lymph nodes enlargements (Figure 2).
Histopathology photo show. (A) Calcified eggs of Schistosoma mansoni (arrows). (B) Showed a mild, predominately lymphocytic, inflammatory infiltrate.
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The histopathology reported that numerous non-caseating granulomas formed of bilharzial ova (Schistosoma mansoni) and multinucleated giant cells (Figure 3).