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PPT : Geriatric Dermatology
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“Geriatric dermatology is a specialty that will receive particular attention. Since the human population is living longer, chronic diseases will become more prevalent, as will diseases of the skin.”
Norman, R.A.; Geriatric dermatology. Dermatologic Therapy; Vol. 16, 2003; 260-268
Types of skin aging
- Intrinsic aging – changes which occur due to normal maturity and occurring in all individuals
- Extrinsic aging – changes induced by UV light exposure, smoking, and other environmental pollutants
Histologic changes (with normal aging and photoaging)
- Dermis becomes relatively acellular, avascular, and less dense with the loss of functional elastic tissue.
- Gradual decline in nerves, microcirculation, and sweat glands
- Decline in growth of nails
- SQ fat atrophies on cheeks and distal extremities, but hypertrophies on waist of men and thighs of women
Histologic changes (with normal aging and photoaging)
Size does matter!
- A flat, circumscribed area that is a change in the color of the skin:
< 1 cm dia = macule
> 1 cm dia = patch (irregular)
- An elevated, firm, circumscribed area:
< 1 cm dia = papule
1-2 cm dia = nodule (deeper)
> 2 cm dia = tumor (solid: + demarcation); cyst if filled with liquid or semi-solid material
Hypopigmented macule of tuberculoid leprosy
Generalized plaques of mycosis fungoides
Papular eruption of molluscum contagiosum
Lymphocutaneous nodules of sporotrichosis
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