A collection of pus in tissues, organs, or other parts of the body.
Reference: American Cancer Society. Learn about Cancer. Cancer Glossary. Internet. Accessed on October 5, 2011. Available at http://www.cancer.org/Cancer/CancerGlossary/index
An abscess can be a cause of pain, particularly in presence of enterocutaneous fistulae.
Intraperitoneal extravasation of luminal contents can cause abscess.
This may need CT-guided drainage or surgical drainage.
Reference: McGee MF, Delaney CP. Stomas and fistulae. In: Declan Wash et al (Ed). Palliative Medicine. 2009. Elsevier. Philadelphia. Page 489