Ischiorectal abscess

**Definition:** A condition of the rectum, caused by an infection with a bacterial, viral, or fungal source. This condition is characterised by a focal accumulation of purulent material in the ischiorectal space. This condition presents with pain in the perianal region, back pain, swelling, or fever. Confirmation is commonly by advanced imaging.

**Inclusions:** - Abscess of ischiorectal fossa