Anorectal Abscesses
Table 1 details the location of anorectal abscesses, how commonly they present in these areas and an overview of patient symptoms.
A significant number of anorectal abscesses will show subtle or little external evidence so a high index of suspicion must be maintained in a patient with buttock or anorectal pain. a CT scan should be obtained.
|
Location |
Frequency |
Symptoms |
|---|---|---|
| Perianal | 40% | Pain and fluctuant swelling at anal verge |
| Ischiorectal | 20% | Buttock pain and induration, may be no swelling |
| Intersphincteric | 20% | Rectal fullness on per rectal (PR) examination |
| Supralevator | 5% | Buttock and rectal pain, little external evidence of abscess |