Gastroenterology Book

http://www.fpnotebook.com/

Occult Gastrointestinal Bleeding Causes

Aka: Occult Gastrointestinal Bleeding Causes, Gastrointestinal Occult Bleeding Causes
  1. See Also
    1. Gastrointestinal Occult Bleeding
    2. Gastrointestinal Bleeding
    3. Fecal Occult Blood
  2. Causes: False Positive
    1. See Fecal Occult Blood
  3. Causes: Occult Upper Gastrointestinal Bleeding (29-56%)
    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)
  4. Causes: Occult Small Intestinal Bleeding (29-52%)
    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
  5. Causes: Occult Lower Gastrointestinal Bleeding (20-30%)
    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
  6. Causes: Bleeding from a rectal source
    1. Anal Fissure
    2. Internal Hemorrhoid
  7. 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
  8. 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]

You are currently viewing the original 'fpnotebook.com\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree