PMC3418013_01
Figure 1: Axial computed tomography image show a soft tissue mass, located between left psoas muscle and lateral abdominal wall. The lesion partially surrounds the sigmoid colon (A). Contrast enhanced CT arterial (B) and venous (C) phase show marked heterogeneous involvement.
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F1
Radiologist interpreted the condition as an internal herniation of the intestines (Fig. 1).
Figure 2: Arrow indicates the location of removed mass. It was over sigmoid colon (SC) and lateral abdominal wall (LAW)
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F2
No other pathologies were found at except for the thickened sigmoid colon (Fig. 2).
Figure 3a: A colony of actinomyces and mixed inflammatory response at the periphery which include histiyocytes, lymphocytes, plasmocytes, eosinophils and neutrophils.
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F3a
The histopathological examination revealed actinomyces infection (Fig. 3a, 3b).