Anal endosonography can reveal sphincter defects after anorectal surgery. Seventy percent of the patients in this group had no complaints; therefore, defects were unsuspected. This has clinical implications in the evaluation of patients with fecal incontinence.
If FEB occurs in isolation, it is a benign condition carrying a favourable prognosis. If multiple additional anomalies or early IUGR are observed, the prognosis tends to be less favourable to extremely poor.
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