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Fig. 4 | Insights into Imaging

Fig. 4

From: MRI for assessment of anal fistula

Fig. 4

Complex fistula with both inter-sphincteric and trans-sphincteric components. An axial T2-weighted and three consecutive thin slice (1 mm) T1-weighted images with fat-saturation after gadolinium contrast. Images show inter-sphincteric fistula (white arrows). There is a thin communicating fistula stretching in the inter-sphincteric plane (thin hatched arrow), going through the external sphincter to reach the fistula lying outside the external sphincter (dotted arrow)

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