Surgical procedure involving wide excision of the rectum and the creation of a sigmoid colostomy
Abdominoperineal resection
Surgical removal of the appendix
Appendectomy
Inflammation of a narrow, blind protrusion called the vermiform appendix located at the tip of the cecum in the right lower quadrant of the abdomen
Appendicitis
Partial or complete surgical removal of the colon
Colectomy
Chronic inflammatory bowel condition that can occur in any portion of the G.I. tract, but predominantly affects the terminal portion of the ileum
Crohn’s disease
Sacs or pouches caused by herniation of the mucosa through a weak portion of the muscular coat of the intestine or other structure
Diverticula
Inflammation of diverticula
Diverticulitis
Asymptomatic diverticula
Diverticulosis
Involuntary passage of liquid stool around an obstructive mass of stool
Encopresis
Tear in tissue
Fissure
Channel from an organ to the surface of the body or from one organ to another
Fistula
Surgical procedure in which a fistulous tract is excised
Fistulectomy
Surgical procedure involving incision of a fistula
Fistulotomy
A progression of severity of ulcerations associated with ulcerative colitis with severe pain, copious diarrhea, and potential dehydration, and shock
Fulminant colitis
Surgical removal of hemorrhoids
Hemorrhoidectomy
Dilated veins outside or inside the anal sphincter
Hemorrhoids
Protrusion of any organ from the cavity that normally confines it; most commonly used to describe the protrusion of the intestine through a defect in the abdominal wall 
Hernia
Surgical procedure in which the weekend area of a hernia is reinforced with wire, facia, or mesh to prevent recurrence
Hernioplasty
Surgical repair of a hernia
Herniorrhaphy
Group of chronic illness, characterized by exacerbations and remissions of inflammation and ulceration of the bowel lining
Inflammatory bowel disease
Telescoping of one part of the intestine into an adjacent part
Intussusception
Paroxysmal motility syndrome, primarily affecting the colon in which the client experiences alternating periods of constipation and diarrhea 
Irritable bowel syndrome
Black tarry stools
Melena
Ulcerative colitis that affects the client’s entire colon
Pancolitis