13 June 2009

Healthy Skin Women and Dermatology



Healthy Skin Women and Dermatology
By:Suguru Imaeda, M.D.
Chief of Dermatology, Yale University Health Service

Overview
* Normal structures of the skin
* Changes in the skin over time
* Sun and skin
* Skin cancer
* Maintaining healthy skin
Epidermis
the largest organ
* key role in normal healthy functioning of the body
* Disorders range from those limited to the skin to manifestations in the skin of internal disorders
* plays important role in social and psychosocial functioning of the individual
* undergoes changes with aging and in response to external environmental factors and internal hormonal influences
Gender differences
* Fundamental differences in structure and function of the skin
* Differences impact on presentation of skin disease and its management
* Hormonal influences affect common disorders such as acne, rosacea, lupus erythematosus, psoriasis, lichen planus, anogenital pruritus, hidradenitis suppurativa, and atopic dermatitis
Infancy
Toddler to adolescence
Adolescence
Body piercing
* presents risks for multiple possible complications
* nickel allergy
* secondary infection with staphylococcus or streptococcus
* ear cartilage destruction from pseudomonal infection
* candidal infection of the navel or genitalia
* Keloids
* traumatic tears
Tattoos
* Infection
* Granulomatous reaction
* Photodermatitis
* Difficult to remove
Melasma
* Brown patches on forehead and cheeks
* Very sensitive to sun exposure
* More common in Hispanics, Middle Easterners, and Asians
* Most common cause is oral contraceptive use or pregnancy
Melasma management
* Discontinuation of oral contraceptive
* Avoidance of sun/tanning bed
* Daily application of broad spectrum sunscreen
* 4% hydroquinone or 20% azelaic acid
* ? laser
Intrinsic aging
* Changes of chronologic aging gradually become apparent
* Influenced by genetics, gravity, and hormones
* Clinically, the normal aging process leads to fine wrinkles, dryness, sallow color, thinner skin, laxity and purpura
Aging skin
* Decreased function as environmental barrier, sensory organ and immune organ
* Epidermal and dermal atrophy with loss of appendages
* Decreased sweat production leads to dryness
* Decreased body and scalp hair
* Decreased ovarian estrogen production leads to decreased collagen and increased wrinkling
* Overall thinner, paler, drier, with fine wrinkling and decreased elasticity
Histologically
* dermal thinning
* decreased vascularity
* decreased subcutaneous fat
* reduced cellularity of the dermis
* elastic fiber loss
* dermal thinning
* decreased vascularity
* decreased subcutaneous fat
* reduced cellularity of the dermis
* elastic fiber loss

Environmental factors on skin

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Current Obesity Management in Primary Care



Current Obesity Management in Primary Care
By:Eileen L. Seeholzer, M.D., M.S.

Obesity Defined

· Traditionally defined as a weight 20% greater than ideal body weight
· Severe obesity or morbid obesity is defined traditionally defined as a weight 100% greater than ideal body weight

Fat Distribution
Upper-body obesity or abdominal obesity or androgenic obesity: An independent risk factor for diabetes mellitus, cardiovascular disease, hypertension, arthritis, menstrual irregularities and gallbladder disease
(Diabetes mellitus is thirty times higher in highest waist-to-hip ratio (whr)compared to lowest quartile whr)
Clinical Guidelines on the Identification, Evaluation and Treatment of overweight and Obesity in Adults

Body Mass Index Chart
Scope of the problem in the U.S.
Increased Risk for Adult Obesity
* Gender/Ethnicity: Women, blacks, Hispanics and Native Americans
* Family History
* Childhood Obesity
* In lower socioeconomic status
* Sedentary lifestyle
* Increased time-spent watching TV
Local Public Health Data
Associated Medical Problems
Renal: Proteinuria/glomerulosclerosis, CRF
Dermatologic: intertrigo, venous stasis, cellulitis, hidradenitis suppurativa, acanthosis nigricans
Psychiatric: depression, binge eating disorder, night eating syndrome
GU: stress incontinence, PCOS, infertility, pregnancy risk
Rheumatologic: DJD- knee, hip, low back pain
General: fatigue, pain, disability, lower socio- economic status, poorer quality of life
Obesity associated Increased Risks in Pregnancy
* Gestational Diabetes
* Hypertension
* Disordered breathing/Obstructive Sleep Apnea

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Dermatology Review



Dermatology Review
By:Jennifer Best, MD

Acanthosis Nigricans
* Velvety discoloration of skin in flexural creases
* Most commonly seen in insulin resistant states (e.g. DM, PCOS, niacin use), endocrinopathy, malignancy

Xanthelasma
* Soft, polygonal papules and plaques consisting of cholesterol, usually located on upper lids
* When seen in children and young adults, associated with familial hypercholesterolemia
Necrobiosis lipoidica
* Well-demarcated plaque, yellow-orange to tan-pink with thinning and telangiectasia
* Non-painful
* Usually located on shins/feet
* Associated with long-standing, juvenile-onset DM
Molluscum contagiosum
* Centrally umbilicated papules seen in children and sexually active adults
* Viral cause
* More aggressive and common on face in HIV
Angular cheilitis
* Fissuring of corners of mouth
* Associated with thrush, atopic dermatitis, nutritional deficiencies and denture use
Prurigo nodularis
* Pickers’ nodules
* Nodular lesions due to chronic excoriation of the skin
Keratosis pilaris
* Benign sandpaper like bumps (“goosebumps”) on extensor surfaces
* Associated with atopy or a normal variant
Morphea
* Plaques are initially purplish and become ivory in color
* Localized scleroderma
Nikolsky’s sign
* POSITIVE when epidermis is dislodged from the dermis by lateral shearing pressure and blister extends
* Seen in toxic epidermal necrolysis, scalded skin syndrome and pemphigus vulgaris
Seborrheic keratosis
* What is it?
* Does it have malignant potential?
* Warty brown growths seen on aging skin – looks “stuck on”
* No malignant potential, purely cosmetic
Seborrheic dermatitis
* Always think of HIV in seborrheic dermatitis that is extensive or refractory to treatment
Rhinophyma
* Bulbous erythematous enlargement of the nose
* Seen in advanced rosacea
Hidradenitis suppurativa
* Sebaceous cysts seen in follicular areas (e.g. groin, axillae, scalp)
* More common in African Americans
Hereditary Hemorrhagic Telangiectasia
* Other names?
* Dermatologic manifestations?
* Clinical associations?
* Otherwise known as Osler-Weber-Rendu Syndrome
* Autosomal dominant
* Red macular/papular telangiectasias and AVMs on or around mucous membranes/GI tract
* Associated with bleeding tendency
Acrochordon
* Common name?
* Skin tag
Rosacea
* 1. Papules
* 2. Pustules
* 3. Telangiectasias
* Located over cheeks
* May involve nasolabial folds
* Exacerbated by alcohol, hot beverages, spicy foods, sun exposure
Nail pitting
* Associated with?
* Psoriasis
Condyloma lata
* What is it?
* What organism is responsible?
* Flat flesh-colored warts seen in anogenital region
* Representative of secondary syphilis
Condyloma acuminata
* What is it?
* What organism is responsible?
* Human papilloma virus (HPV)
* Genital warts
Whitlow
* Herpes simplex virus infection on finger
* Often seen in health care workers
Tinea versicolor
* Macules with fine scaling on trunk, upper arms, neck, abdomen, axillae with varying pigmentation
* Asymptomatic
* Caused by Malassezia furfur (looks like “spaghetti and meatballs” on KOH prep)
Ascending skin lesions
* Differential diagnosis?
* Mycobacterium marinum
* Sporothrix schenkii
* Nocardia
* Francisella tularensis
Hypopigmented anesthetic macules
* Leading diagnosis?
* Leprosy (Hansen’s Disease)
Yellow-orange skin discoloration

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