colitis, ulcerative – crohn disease – intestinal atresia – intestinal diseases, parasitic – anisakiasis – balantidiasis – blastocystis infections – cryptosporidiosis – dientamoebiasis – dysentery, amebic – giardiasis – intestinal fistula – rectal fistula – rectovaginal fistula – intestinal neoplasms – cecal neoplasms – appendiceal neoplasms – colorectal neoplasms – colonic neoplasms – adenomatous polyposis coli – gardner syndrome – sigmoid neoplasms – colorectal neoplasms, hereditary nonpolyposis – rectal neoplasms – anus neoplasms – anal gland neoplasms – duodenal neoplasms – ileal neoplasms – immunoproliferative small intestinal disease – jejunal neoplasms – intestinal obstruction – afferent loop syndrome – duodenal obstruction – fecal impaction – ileus – intestinal pseudo-obstruction – colonic pseudo-obstruction – intestinal volvulus – intussusception – intestinal perforation – intestinal polyposis – adenomatous polyposis coli – gardner syndrome – peutz-jeghers syndrome – jejunal diseases – jejunal neoplasms – malabsorption syndromes – blind loop syndrome – celiac disease – lactose intolerance – short bowel syndrome – sprue, tropical – steatorrhea – whipple disease – mesenteric vascular occlusion – pneumatosis cystoides intestinalis – protein-losing enteropathies – rectal diseases – anus diseases – anus neoplasms – anal gland neoplasms – fissure in ano – pruritus ani – colorectal neoplasms – rectal neoplasms – anus neoplasms – anal gland neoplasms – fecal incontinence – hemorrhoids – proctitis – proctocolitis – rectal fistula – rectovaginal fistula – rectal prolapse – rectocele – zollinger-ellison syndrome – peptic ulcer – duodenal ulcer – esophagitis, peptic – peptic ulcer perforation – stomach ulcer – zollinger-ellison syndrome – stomach diseases – achlorhydria – diverticulosis, stomach – duodenogastric reflux – bile reflux – gastric antral vascular ectasia – gastric dilatation – gastric outlet obstruction – pyloric stenosis – pyloric stenosis, hypertrophic – gastritis – gastritis, atrophic – gastritis, hypertrophic – gastroparesis – peptic ulcer – peptic ulcer perforation – stomach ulcer – postgastrectomy syndromes – dumping syndrome – stomach neoplasms – stomach rupture – stomach volvulus – zollinger-ellison syndrome – tuberculosis, gastrointestinal – visceral prolapse – liver diseases – cholestasis, intrahepatic – alagille syndrome – liver cirrhosis, biliary – fatty liver – fatty liver, alcoholic – reye syndrome – focal nodular hyperplasia – hepatic insufficiency – liver failure – hepatic encephalopathy – liver failure, acute – massive hepatic necrosis – hepatic vein thrombosis – hepatic veno-occlusive disease – hepatitis – hepatitis, alcoholic – hepatitis, animal – hepatitis, viral, animal – hepatitis, infectious canine – rift valley fever –