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Fig. 2 | Insights into Imaging

Fig. 2

From: Early cross-sectional imaging following open and laparoscopic cholecystectomy: a primer for radiologists

Fig. 2

a, b Usual CT appearance of a trocar access site following uncomplicated laparoscopic cholecystectomy. Axial (a) and coronal (b) images show a tubular non-enhancing hypodense structure (arrows) crossing through the mildly thickened left rectus abdominis muscle. This normal finding should be differentiated from c, which is an intraparietal abscess (arrows in c) developing within the right external and internal oblique muscles following laparoscopic trocar access and manifesting with local swelling

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