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Fig. 15 | Insights into Imaging

Fig. 15

From: MRI and CT of anal carcinoma: a pictorial review

Fig. 15

A 40-year-old male patient with long-standing perianal Crohn’s disease, being treated with seton. Contrast-enhanced MDCT images (a, b, c in cranio-caudal order) show right-sided levator ani abscess (*), extensive perianal fistulisation occupying the ischioanal space (arrow), and marked solid-appearing circumferential anorectal thickening (arrowheads). Abdomino-perineal resection for SCAC was performed

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