Intro to Onco Pt 1 Flashcards
_________ is characterized by uncontrolled growth and spread of abnormal cells.
Cancer
What are the 2 types of precancerous cells?
Hyperplasia and dysplasia
What is the difference between dysplasia and hyperplasia?
Hyperplasia = accelerated growth of cells Dysplasia = Abnormal looking cells with or without accelerated growth
Cancer is classified by the origin, including the type of tissue where it occurs and the primary site of development. The name for a benign tumor ends in _____, while for a malignant tumor it ends in _______.
Benign = -oma Malignant = -sarcoma
True or False: A malignant tumor is often encapsulated and rarely recurs once surgically removed.
False! These are characteristics of a benign tumor.
Malignant cells are ______, meaning that they have different cellular architecture than the cells of origin that are normal.
Anaplastic
All of the following are internal factors influencing carcinogenesis EXCEPT: A. Viruses (HIV, HPV, EBV, etc.) B. Heredity (genetic mutations) C. Inflammation (immune conditions) D. Endocrine factors (hormones)
A. Viruses (HIV, HPV, EBV, etc.)
______ means growth of the same cancer at a distant site from origin.
Metastases
List the 4 common sites of metastases.
Lung, liver, brain, bone
There are 4 avenues of spread for cancer to metastasize through the body. Which of the following means that the cancer spreads through seeding of tumor during biopsy? A. Direct Extension B. Lymphatic C. Hematogenous D. Implantation
D. Implantation
List 2 of the 4 avenues of metastases that are the most common. A. Direct Extension B. Lymphatic C. Hematogenous D. Implantation
B. Lymphatic
C. Hematogenous
True or False: Malignant cells secrete mediators that stimulate formation of blood vessels for growth and oxygen (and they thrive on this).
True
Which of the following is NOT a risk factor for cancer development? A. Older age B. Smoking C. Unhealthy diet D. High cholesterol E. UV exposure F. Family history
D. High cholesterol
True or False: Geographical location plays a role in higher cancer mortality.
True
The most commonly diagnosed cancer annually is ___ in women and _____ in men.
Breast cancer in women
Prostate cancer in men