skin cancer: the facts. the facts………. skin cancer is the most common cancer approximately 1...
TRANSCRIPT
Skin Cancer: The Facts
The Facts……….
• Skin cancer is the most common cancer
• Approximately 1 million cases per year
• It is estimated that nearly half of Americans will develop skin cancer by the time they turn 65
Some basic anatomy….
3 layers
1- Epidermis
2- Dermis
3- Hypodermis
Epidermis
“Outer Layer”
Contains Keratin- protein used to protect and water proof cells
Outer layer skin cells replaced once per month
Nails- dead cells that grow out of the epidermis
Dermis
“Middle Layer”- gives skin elasticityThings found in the dermis:
1- Glandsa. sebaceous glands-
produce oilb. sweat glands- produce
sweat2- hair- you have b/w 100,000 and
200,000 hairs on your head
Hypodermis
“inner layer”
Attaches skin to bone and muscle
Acts as insulation and cushion for organs
What is skin cancer?
Skin cancer develops when abnormal cells develop and replicate in the skin tissue
( most occur in the epidermis)
Risk factors……….
• Light colored skin
• Prolonged exposure to the sun- UV radiation
• Age
What are the signs/symptoms….
Remember your ABC’s………….A- Asymmetry
B- Border
C- Color
D- Diameter
How is skin cancer diagnosed?
Unusual looking skin:• Biopsy
• X-rays
• Blood test
• Scans of liver
Three types of skin cancer….
1- Basal cell carcinoma
2- Squamous cell carcinoma
3- Melanoma
Basal Cell Carcinoma…..
• Most common ( accounts for 90% of the cases)
• Does not spread( metastasize)
Appearance: Looks like a dome-shaped bump/ texture is “pearly”
Basal Cell Continued……
• Growth is slow
• Removal is the most common form of treatment
• Overall success rate of complete recovery- 90 %
Squamous Cell Carcinoma…
• Occur 25% as often as basal cell
• Can spread (metastasize)
• More common is men than women
Squamous Cell Continued…..
Appearance: Starts out as firm, red, bump
Hot spots: Occur mainly on the lower lip
Melanoma……
• Most deadly form of skin cancer
• Develop when an existing mole changes in color or shape
• Begins in melanocytes
•Melanocytes- cells that
produce melanin, found
throughout the epidermis
Type: Signs fact
Basal Dome shaped bump
Most common
Squamous Red, firm bump
More common in men
Melanoma Results from abnormal mole growth
Most deadly
Treatment……..
• Surgery
• Chemotherapy
• Anticancer drugs/perfusion
• Biological therapy
• Radiation therapy
References…..
Medicine Net: Melanoma http://www.medicinenet.com/melanoma/article.htm. © 1996-2005 Medicine Net, Inc. All rights reserved
Medicine Net: Skin Cancer (Nonmelanoma Skin Cancer)
http://www.medicinenet.com/skin_cancer/article.htm
. © 1996-2005 Medicine Net, Inc. All rights reserved