PMC8208764_01
Axial view of a computed tomography scan of the abdomen at presentation demonstrating one of the large intra-abdominal collections measuring 129x58 mm.
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F1
A computed tomography (CT) scan of his abdomen showed interval progression of pre-existing retroperitoneal and intraperitoneal collections with the largest collection measuring 129x58 mm (Fig. 1).
Gram-stain demonstrating small Gram-negative bacilli (red arrow) in the presence of polymorphonuclear cells (blue arrow) on high power field microscopy.
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F2
Gram-stain of aspirated material demonstrated numerous polymorphic leukocytes and Gram-negative bacilli under high powered field microscopy (Fig. 2).
Growth of tiny white colonies after 48 h on horse blood agar under anaerobic conditions at 37 degrees Celsius with section magnified.
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F3
After 2 days of incubation, tiny white non-haemolytic colonies were cultured on horse blood agar under anaerobic conditions at 37 degrees Celsius (Fig. 3).