COMMON GERIATRIC SKIN DISORDERS

Posted by e-Medical PPT
Common Geriatric Skin Disorders
Age-related changes in skin structure
Xerosis
Dermatitis
Purpura
Pruritis
Bullous Diseases
Dermatomyositis
Intertrigo
Acne Rosacea

Skin Changes with Age
Barrier properties - reduced due to:
 Decreased sweat and sebaceous activity
 Thinning of the epidermis and dermis
 Skin is dryer
Microvasculature - diminished blood flow
 Fewer vessels in the skin
 Disorganized and tortuous remaining vessels
Immunologic Function - decreases
 Acute inflammatory reactions are diminished.
 Contact allergy less severe.
Faulty Thermoregulation
 Heat loss through skin increases
Reduced Cellular Turnover
 Slower wound repair
 Slower desquamation

DERMATITIS
Despite decreased immune response, inflammation is very common in geriatric skin.
Eczematous dermatitis = general term  for erythematous, scaly skin.
May be generalized and non- specific in pattern
Eczema craquele´
Nummular eczema
Contact dermatitis

Contact Dermatitis
Irritant contact dermatitis is often caused by soaps, detergents, and other cleaners (like bleach) as well as formalin, latex, and certain antimicrobial skin ointments.
Allergic contact dermatitis include urushiol (a chemical in poison ivy, poison oak, and mango), nickel in hairpins, earrings, zippers, door handles, and ingredients in hair dyes, insecticides, fungicides, and rubber products.

PRURITIS
Pruritis without a dermatitis
a specific condition of itching with no preceding rash
causes include :
Malignancy (especially lymphomas)
 Thyroid disease
 Anemia, particularly iron deficiency
Renal or liver disease
Polycythemia vera

BULLOUS DISEASES
Paraneoplastic Pemphigus
Autoantibodies to epidermal adherence molecules
May develop in association with either malignant or benign tumors
Benign :  Castleman’s tumor, thymomas
Malignant:  Non-hodgkin’s lymphoma, adenocarcinomas, sarcomas

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