Memory Check: Structure and Function of GI Tract



[pic] Memory Check: Cancers of the Digestive System

The following chart will provide you with an overview of the various cancers, which occur in the

digestive system.

Cancers of the Digestive System

|Type |Risks |Cell Type |Manifestations |

|Esophagus |Malnutrition, ETOH |Squamous cell |Chest pain, |

| |abuse, tobacco, |Adenocarcinoma |dysphagia |

| |Chronic reflux | | |

|Stomach |Dietary salty foods, |Adenocarcinoma |Anorexia, malaise, |

| |nitrates, gastric |Adenocarcinoma |weight loss, upper |

| |atrophy, | |abdominal pain, |

| |nitrosamines | |vomiting, occult |

| | | |blood. |

|Colorectal |Chromosomal |Adenocarcinoma |Pain, anemia, bloody |

| |deletions, polyps, | |stool, mass in right |

| |diverticulitis, | |colon, obstruction in |

| |ulcerative colitis, | |left colon, distention, |

| |high refined CHO, | |elevated CEA. |

| |low-fiber/high fat | | |

| |diet. | | |

|Liver |HBV, HCV, HDV, |Hepatomas |Pain, anorexia, |

| |cirrhosis, intestinal |Cholangiomas |bloating, weight loss, |

| |parasites, aflatoxin. | |portal hypertension, |

| | | |ascites, +/- jaundice, |

| | | |elevated serum |

| | | |proteins and |

| | | |enzymes. |

|Gallbladder |Cholelithiasis |Adenocarcinoma, |Steady pain, diarrhea, |

| | |Squamous cell, |anorexia, vomiting, |

| | |Secondary metas- |+/- jaundice. |

| | |tases | |

| | | | |

| | | | |

|Pancreas |Chronic pancreatitis, |Adenocarcinoma |Weight loss, pain, |

| |cigarette smoking, | |weakness, nausea, |

| |ETOH abuse, | |vomiting, depression, |

| |diabetic women. | |+/- jaundice, possible |

| | | |hypoglycemia if an |

| | | |insulin-secreting |

| | | |tumor. |

Note: treatment for esophageal, stomach, gallbladder, and pancreatic cancer is essentially

surgical. Liver neoplasms are treated with surgery and chemotherapy. Colorectal

cancer therapy uses surgery, radiation, and chemotherapy.

MemChk.GI.7.MdP

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