Presentation on theme: "Skin Cancer In a society obsessed with appearance the numbers of people that have skin cancer has been on a rise for years…. In fact 1 out of 5 Americans."— Presentation transcript:
1Skin CancerIn a society obsessed with appearance the numbers of people that have skin cancer has been on a rise for years….In fact 1 out of 5 Americans will develop some form of skin cancer.What exactly is it?Skin cancer usually arises from nonpigmented epithelial cells within the deep layer of the epidermis or from pigmented melanocytes.
2Skin CancerA crucial risk factor for skin cancer is exposure to UV radiation (sunlight), which damage DNA baseThey actually have developed a lotion can fix damaged DNA before it develops into skin cancer.
3Basal Cell Carcinoma (aka) Cutaneous Carcinomas Basal Cell carcinoma are the most common form of skin cancer.This is skin cancer that originates from epithelial cells…also called carcinoma or squamous cell carcinoma
4Basal Cell Carcinoma (aka) Cutaneous Carcinomas Often develops from a hard, dry, scaly growth with a reddish base.May be flat or raised, usually firmly adheres to the skinTypically slow growing.People of all ages are affected.These cancers occur most frequently in light skinned people over forty years of ages.Seen in persons who are regularly exposed to sunlight, such as farmers, sailors, athletes, or sunbathers.
5Squamous Cell Carcinomas Skin cancer arising from the keratinocytes of the stratum spinosum.The lesion appears as a scaly reddened papula (small rounded elevation)Seen most often on the head, ears, and lower lips, and hands.It tends to grow rapidly and metastasize if not removed.If caught early good chance of cure.
6Melanomas (Cutaneous Melanomas) Cancer of melanocytes, is the most dangerous skin cancer because it is highly mestastatic and resistant to chemotherapy.About 5% of all cancerIncreasing in the USCan begin wherever there is pigment.Most often spontaneously….many from pre-existing moles.
7Melanomas (Cutaneous Melanomas) May affect people of all ages.Seemed to be caused by short, intermittent exposure to high-intensity sunlight. Thus, risk of melanoma, increases in persons who stay inside by occasionally sustain blistering sunburns.
8Melanomas (Cutaneous Melanomas) Light skin people are more prone.Arising from normal skin often looks like a mole.If caught quickly can be removed, but if it begins to thicken and grow downward into the skin, and invading tissue much harder to surgical remove.
9Hair LossA normal person loses from hairs a day as part of the normal cycle.A typical hair grows from 2-6 years, rest for 2-3 months, then falls out.At any time 90% of hair is in its growth phase.A follicle has only a limited numbers of cycles in it.
10Hair LossIn the US about 57.5 million people have some degree of baldness..35 million men, 20 million women.Any type of hair loss or thinning is called alopeciaPattern Baldness is called androgenic alopecia and is an sex-influenced inherited trait…along with direction of a cowlick, white forelock, hair ears, elbows, nose tip or palms
11Hair Loss Causes of androgenic alopecia Genetic Emotional Stress Drugs Acutely high feverSurgeryRingwormIf the hair follicle is NOT damaged and the condition is fixed hair growth will resume.
12Hair LossSome baldness may be contributed to age…a change in hormone balance may cause loss of hair.Alopecia Areata…a condition in which the body manufactures antibodies that attack the hair follicles.
13Acne- acne vulgarisAcne is not caused by uncleanlisness, or eating too much chocolate or greasy food.Several acne treatments are available but usually take months to work.
14Acne- acne vulgaris A disorder caused by the sabaceous glands. Excess sebum and squamous epithelial cells and bacteria clog the glands producing blackheads and whitehead (comedones).The clogged sebaceous gland provides an attractive environment for anaerobic bacteria that signals the immune system to trigger inflammation. The inflamed, raised area is a pimple (pustule).
15Acne- acne vulgaris Acne is the most common skin disorder. 80% of people sometime between the ages of are affected.Just before puberty the adrenal glands increase production of androgens, which stimulated increased secretion of sebum.