What is the biggest cause of colorectal cancers?
Genetic susceptibility.
Inactive lifestyle.
Smoking.
Dietary components.
Excessive alcohol consumption
A diet high in which of the following increases the risk of developing CRC?
Saturated fats
Red meat
Vegetables
Refined carbohydrates
Alcohol
Fiber
1% of all CRC is due to familial adeno-polyposis genetic disorder.
By age 50, what percentage of patients with familial history of adeno-polyposis genetic disorder contract CRC?
25%
50%
75%
100%
Hereditary non-polyposis CRC accounts for 8% of all CRC.
Which of the following are risk factors for CRC?
Dietary factors.
Inflammatory bowel disease
Genetic disorders
Diabetes
Heart disease
Most CRCs develop from a benign precursor lesion or adenoma (polyp).
Which of the following may be symptoms of CRC?
Excessive sweating
Diarrhoea
Constipation
Anemia
Dizziness
Abdominal bloating
Fatigue
Weight gain
CRC diagnosis is based on which of the following?
Clinical manifestations
Colonoscopy
Family history/genetics
Radiography
RAIU testing
Which of the following are classifications of Dukes CRC staging?
Cancer limited to bowel wall
Nodal metastasis regardless of extension through bowel wall
Distant metastasis
Death
Cancer extending through the bowel wall
What percentage of bowel cancers start as polyps?
63%
97%
