PCOL 838 FINAL: neoplasia Exam Questions
with Correct Answers
What is neoplasia?
Uncontrolled, abnormal growth of cells that forms a neoplasm (tumor).
What is a neoplasm?
The abnormal growth (tumor) resulting from neoplasia
What are the two major types of neoplasia?
Benign and malignant.
What characterizes benign tumors?
They are slow-growing, localized, and noncancerous.
What are examples of benign tumors?
Lipomas, adenomas, fibroids, hemangiomas, nevi, meningiomas.
What is a lipoma?
Benign tumor of fatty tissue (most common)
What is an adenoma?
Benign tumor of glandular tissue (colon polyps, thyroid nodules)
What are fibroids?
Benign connective tissue tumors (often uterus)
What is a hemangioma?
Benign tumor of blood vessels (purple or red) often found on the skin
, What are nevi?
Moles on the skin
What is a meningioma?
Tumor of brain/spinal cord (more common in women)
What birth control is associated with increased meningioma risk?
Medroxyprogesterone acetate (Depo-Provera)
what population is at risk most for meningiomas?
women that have been taking Depo-Provera for at least 4 years and are over 31 years old
What characterizes malignant tumors?
They are invasive and can spread (metastasize).
What is the preclinical phase of cancer?
An early, 'pre-cancerous' stage with fewer malignant cells, often not detectable by imaging.
Why is it hard to detect?
< ~1 billion malignant cells
Examples of preclinical lesions?
Polyps, dysplastic nevi
What are cancer cells?
Normal cells with defects causing uncontrolled growth
Progression sequence of cancer cells?
Normal → Hyperplasia → Dysplasia → Cancer
with Correct Answers
What is neoplasia?
Uncontrolled, abnormal growth of cells that forms a neoplasm (tumor).
What is a neoplasm?
The abnormal growth (tumor) resulting from neoplasia
What are the two major types of neoplasia?
Benign and malignant.
What characterizes benign tumors?
They are slow-growing, localized, and noncancerous.
What are examples of benign tumors?
Lipomas, adenomas, fibroids, hemangiomas, nevi, meningiomas.
What is a lipoma?
Benign tumor of fatty tissue (most common)
What is an adenoma?
Benign tumor of glandular tissue (colon polyps, thyroid nodules)
What are fibroids?
Benign connective tissue tumors (often uterus)
What is a hemangioma?
Benign tumor of blood vessels (purple or red) often found on the skin
, What are nevi?
Moles on the skin
What is a meningioma?
Tumor of brain/spinal cord (more common in women)
What birth control is associated with increased meningioma risk?
Medroxyprogesterone acetate (Depo-Provera)
what population is at risk most for meningiomas?
women that have been taking Depo-Provera for at least 4 years and are over 31 years old
What characterizes malignant tumors?
They are invasive and can spread (metastasize).
What is the preclinical phase of cancer?
An early, 'pre-cancerous' stage with fewer malignant cells, often not detectable by imaging.
Why is it hard to detect?
< ~1 billion malignant cells
Examples of preclinical lesions?
Polyps, dysplastic nevi
What are cancer cells?
Normal cells with defects causing uncontrolled growth
Progression sequence of cancer cells?
Normal → Hyperplasia → Dysplasia → Cancer
