Perirectal Abscess
To view the entire topic, please log in or purchase a subscription.
Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
-- The first section of this topic is shown below --
Basics
Description
Localized infection and accumulation of purulent material adjacent to anus or rectum
Etiology
- Anal crypt gland infection, with spread to adjacent areas separated by muscle and fascia:
- Perianal:
- Most common
- Usually with red bulge near anus
- Ischiorectal:
- Large potential space
- May become very large before diagnosed
- Can communicate posteriorly with other side forming “horseshoe” abscess
- Intersphincteric:
- Contained at primary site of origin between internal and external sphincters
- Supralevator:
- Very deep above levator ani
- Needs operative débridement under general anesthesia
- Often systemic symptoms before diagnosis is made
- Perianal:
- Bacterial cause is typically a mix of stool species
-- To view the remaining sections of this topic, please log in or purchase a subscription --
Basics
Description
Localized infection and accumulation of purulent material adjacent to anus or rectum
Etiology
- Anal crypt gland infection, with spread to adjacent areas separated by muscle and fascia:
- Perianal:
- Most common
- Usually with red bulge near anus
- Ischiorectal:
- Large potential space
- May become very large before diagnosed
- Can communicate posteriorly with other side forming “horseshoe” abscess
- Intersphincteric:
- Contained at primary site of origin between internal and external sphincters
- Supralevator:
- Very deep above levator ani
- Needs operative débridement under general anesthesia
- Often systemic symptoms before diagnosis is made
- Perianal:
- Bacterial cause is typically a mix of stool species
There's more to see -- the rest of this topic is available only to subscribers.