case_images: PMC11393526_01
case_images: Abdominal CT scan showing acute intestinal obstruction with an obstructive tissular mass at the sigmoid colon (red asterixis).
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case_images: PMC11393526_01_f1000research-13-170479-g0000.jpg
case_images: f1
case_images: We followed up with an abdominal CT scan without contrast, which revealed an acute intestinal obstruction upstream of a suspected obstructive tissue process at the sigmoid colon, with associated satellite lymph nodes and a dilated cecum measuring 12 cm ( Figure 1).
case_images: Total colectomy specimen with a 7 cm obstructive solid mass of the sigmoid colon (white arrow).
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case_images: PMC11393526_01_f1000research-13-170479-g0001.jpg
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case_images: The patient underwent a total colectomy with ileostomy and distal end closure ( Figure 2).
case_images: Histological examination: Colonic actinomycosis with spherical cluster of actinomyces and a suppurative inflammation at the periphery (H&E x200).
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case_images: There was no granulomatous inflammation ( Figures 3, 4).
case_images: Densely packed filamentous bacteria arranged in clusters surrounded by polymorphic inflammatory cells (PAS Stain x200).
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case_images: PMC11393526_01_f1000research-13-170479-g0003.jpg
case_images: f4
case_images: There was no granulomatous inflammation ( Figures 3, 4).