PMC2642854_01
Axial computed tomography image with oral and intravenous contrast at the level of S1 demonstrating a giant colonic diverticulum*. The wall of the diverticulum and the surrounding fat are thickened denoting recent inflammation. Note the relationship to the left external and internal iliac vessels (arrows A and B, respectively). The obturator nerve (L2-4) emerges from the medial aspect of the psoas muscle and runs downwards and forwards, deep into [the internal iliac vessels.
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PMC2642854_01_1752-1947-3-29-1.jpg
F1
Computerized tomography demonstrated a thick-walled, air filled cavity closely related to the sigmoid colon, compatible with a GCD (Figure 1).