Located around the anus, the opening of the rectum to the outside of the body.

Read Also:

  • Perianal abscess

    A local accumulation of pus that forms next to the anus, causing tender swelling in that area and pain on defecation.

  • Periaortic

    Around the aorta. For example, periaortic lymph nodes are lymph nodes around the aorta.

  • Periappendiceal

    Near the appendix. Perforation of the appendix can lead to a periappendiceal abscess (a collection of pus near the appendix).

  • Pericardial

    Referring to the pericardium, the sac of fibrous tissue that surrounds the heart.

  • Pericardial effusion

    Too much fluid within the pericardium, which normally contains a small amount of serous, pale yellow fluid.

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