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Table 2 Results of 3D-EAUS findings in classification of secondary extensions, fluid collections and horseshoe tracts

From: Value of three-dimensional endoanal ultrasound scan (3D-EAUS) in preoperative assessment of fistula-in-ano

Feature examined

No. of patients correctly classified in 3D-EAUS

Primary tracks (n = 86)

61 (70.9%)

Fluid collections (n = 16)

9 (56.3%)

Extensions (n = 7)

1 (14.3%)

Superficial abscess (n = 4)

0 (0%)

Horseshoe tracts (n = 2)

1 (50%)