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Occult Gastrointestinal Bleeding Causes

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Occult Gastrointestinal Bleeding Causes, Gastrointestinal Occult Bleeding Causes

  • See Also
  1. Gastrointestinal Occult Bleeding
  2. Gastrointestinal Bleeding
  3. Fecal Occult Blood
  1. See Fecal Occult Blood
  1. See Upper Gastrointestinal Bleeding
  2. Erosive Gastritis (3-16%)
  3. Gastric Ulcer (4-6%)
  4. Gastric Carcinoma or Esophageal Cancer (1-4%)
  5. Esophageal Varices
  6. Gastroesophageal Reflux or Esophagitis (6-18%)
  7. Hiatal Hernia (with Cameron's Erosions)
  8. Gastric Vascular Malformation or Angiodysplasia (1-8%)
    1. Dieulafoy's Lesion (dilated vessel in mucosal lesion)
    2. Antral vascular ectasia (Watermelon Stomach)
  1. See Small Intestinal Bleeding
  2. Duodenal Ulcer or Duodenitis (1-11%)
  3. Meckel's Diverticulum
  4. Crohn's Disease (especially terminal ileum)
  5. Gluten Enteropathy or Celiac Sprue (0-6%)
  6. Long Distance Running
  1. See Lower Gastrointestinal Bleeding
  2. Intestinal Polyps or adenomas that are typically >1 to 1.5 cm (5-14%)
  3. Colon Cancer (5-11%)
  4. Angiodysplasia (1-9%)
  5. Colitis (1-2%)
    1. Ischemic Colitis
    2. Ulcerative Colitis
  6. Diverticular Bleeding
  • Causes
  • Bleeding from a rectal source
  1. Anal Fissure
  2. Internal Hemorrhoid
  • Causes
  • Miscellaneous Source
  1. Infection
    1. Amebiasis
    2. Ascariasis
    3. Cytomegalovirus
    4. Hookworm
    5. Strongyloides
    6. Tuberculosis (Tuberculous Enterocolitis)
    7. Whipworm
  2. Malignancy
    1. Colon Cancer
    2. Kaposi's Sarcoma
    3. Lymphoma
    4. Leiomyoma
    5. Carcinoid
    6. Melanoma
  3. Vascular
    1. Aortoenteric Fistula
    2. Hemangioma
    3. Radiation Injury
    4. Vascular ectasia
  • References
  1. Rockey in Feldman (2002) Sleisenger GI, p. 232-48
  2. Bull-Henry (2013) Am Fam Physician 87(6): 430-6 [PubMed]
  3. Rockey (2010) Nat Rev Gastroenterol Hepatol 7(5): 265-79 [PubMed]
  4. Zuckerman (2000) Gastroenterology 118:211-2 [PubMed]