Caution in using 3D-EAUS as the first-line diagnostic tool in the preoperative work up for perianal fistulas
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MRI is considered the de facto imaging modality for evaluating perianal fistulas, primarily due to its excellent soft tissue contrast, operator independence, multiplanar capabilities and excellent field of view. Tridimensional endoanal ultrasound (3D-EAUS) is inferior to MRI in identifying and/or evaluating ischiorectal/supralevator tracks/extensions and therefore could end up providing incomplete and even inaccurate information (e.g. misclassification of tracks) to the surgeon, with a missed track potentially leading to recurrence of the disease.
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Conflict of interest
The authors declare no conflict of interest, and all authors have provided their consent.
The manuscript does not contain clinical studies or patient data.
- 1.Brillantino A, Iacobellis F, Reginelli A, Monaco L, Sodano B, Tufano G, Tufano A, Maglio M, De Palma M, Di Martino N, Renzi A, Grassi R (2019) Preoperative assessment of simple and complex anorectal fistulas: tridimensional endoanalultrasound? magnetic resonance? both? Radiol Med 124(5):339–349CrossRefGoogle Scholar