gastrointestinal disorders
Anorectal Abscess
Diagnosis of Anorectal Abscess
Clinical evaluation Sometimes examination under anesthesia or rarely CT Patients who have a pointing cutaneous abscess, a normal digital rectal examination, and no signs of systemic illness do not require imaging. CT scan is useful when a deep abscess or Crohn disease are suspected. Higher (supralevator) abscesses require CT to determine the intra-abdominal source of the infection. Pelvic MRI and endoscopic ultrasonography are alternative imaging studies. Patients with any findings suggestive of a deeper abscess or complex perianal Diagnosis should have an examination under anesthesia at the time of drainage. 