Chapter 7 - Neoplasms and Cysts (Oncology)
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How is growth regulated?
By genetic program and growth-promoting and/or growth-inhibiting factors
What are Cellular Alterations?
Permanent cellular changes triggered by adverse conditions
Are cellular changes neoplastic?
No
What does neo-plastic mean?
New growth changes
What is a list of Non- neoplastic changes?
Atrophy Hypertrophy Hyperplasia Dysplasia Metaplasia
What is a Tumor Neoplasm?
The abnormal excessive and uncontrolled multiplication of cells with the formation of a mass or new growth of tissue
How is a tumor caused?
By genetic mutation due to exposure to carcinogens
What are the examples of Carcinogens that would lead to a tumor?
Genetic Disposition Microbial Carncinogen Radioactive Factors Chemical Carcinogen Hormones Animal Carcinogens Personal Risk Behaviors
What are the classifications of Neoplasms?
Benign Neoplasm - Oma Malignant Neoplasm - Carcinoma
What is a Scar?
A mark left in the skin or an internal organ by the healing of a wound, sore, or injury; Connective Tissue
What are the causes of Benign Tumors?
Trauma Infections Degenerative disorders Inflammatory diseases
What does NOT happen with Benign Neoplasms?
They Dont: Migrate Return after surgical removal Cause extensive tissue damage Cause whole body changes Become fatal
A group of closely packed cells that cover surfaces, line body cavities, and form secretory parts of glands
Epithelial Tissue
What is an Adenoma?
A neoplasm formed by glandular epithelium
Circumscribed overgrowth or hypertrophy of the papillae of a cutaneous or mucous surface?
Papilloma
Circumscribed vascular tumor of the skin or other body organs due to HYPERPLASIA of the blood vessels
Nevus
What is a Polyp?
A growth or mass of tissue that protrudes from a mucous membrane
Osteoma
Bone Tumor
Chondroma
Cartilage Tumor in Benign Tumors
Lipoma
Adipose tissue - Benign Tumor
Angioma
Blood vessel or lymph vessel tumor Benign Tumor
Hematoma
Tumor-like swelling filled with blood Benign Tumor
Fibroma
Fibrous, encapsulated tissue; irregular in shape Benign tumor
What is Connective Tissue?
Loosely arranged cells and fibers that have nerve and blood supply; they connect together