Recent advances in ultrasonography have improved significantly the accuracy and applicability of this technology to the management of anorectal pathology. Intrarectal ultrasonography has demonstrated a high degree of accuracy in the assessment of extent of local invasion of rectal carcinomas as well as the degree of regional lymph adenopathy. It also is capable of playing a significant role in the management of anorectal suppurative disorders by allowing identification of deep-seeded abscesses. This technology will play an expanding role in the management of anorectal disorders and should be in the armamentarium of the surgeon managing these problems.
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