Cancer Flashcards
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What is the single most important nonmodifiable risk factor for cancer?
Age over 50
What family history factors increase cancer risk?
Diagnosis of cancer in two or more family members, especially under age 50.
Which ethnicity has a higher incidence and mortality from cancer?
African Americans
What modifiable factors increase the risk of cancer?
Increased BMI, low vegetable diet, high animal fat, alcohol, tobacco, drug use, etc.
How does exposure to radiation and chemicals contribute to cancer risk?
Increased risk due to environmental and occupational factors.
What dietary behaviors are linked to cancer risk?
High intake of animal fats and low intake of vegetables.
What factors increase the risk of cancer recurrence?
- age
- positive lymph nodes
- tumor size > 2 cm
- high histopathologic grade
What is the most common types of cancer, and where do they originate?
- (1) Carcinoma, originating in epithelial tissue
- (2) Sarcoma, connective tissue
- (3) Blood borne cancers
What is a sarcoma?
A tumor of connective tissue (bone, cartilage, muscle, etc.).
What are blood-borne cancers?
Myeloma, leukemia, and lymphoma (affecting blood cells and lymphatics).
What is the common method of metastasis for blood-borne cancers?
Via the blood and lymphatic system.
Which cancer types most commonly metastasize to bone, lungs, and liver?
Carcinoma and blood-borne cancers.
What are the most common clinical manifestations of cancer that a PT might see?
- integumentary
- pulmonary
- neurologic
- skeletal
- hepatic manifestations
What is a key early sign of malignancy related to pain?
Night pain > 7/10
What is a red flag related to weight loss for malignancy?
Unintentional weight loss > 10% in two weeks.
What proximal muscle weakness signs could indicate malignancy?
- difficulty with sit-to-stand or climbing stairs
- (+) Trendelenberg sign
What integumentary symptoms should raise concern for cancer?
Lesions that have changed over six weeks, not examined by a physician.