Cutaneous Manifestations of Systemic Diseases. Hayden H. Franks, MD June 13, 2013. Who Is This Guy?. Private practice Dermatologist Clinics in Little Rock and Texarkana Fellow of the American Academy of Dermatology Diplomate of the American Board of Dermatology
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Cutaneous Manifestations of Systemic Diseases
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Who Is This Guy? • Private practice Dermatologist • Clinics in Little Rock and Texarkana • Fellow of the American Academy of Dermatology • Diplomate of the American Board of Dermatology • Assistant Clinical Professor of Dermatology, UAMS AHEC SW • Honorary Member of the Arkansas Academy of Family Physicians
Cutaneous Manifestations of Systemic Diseases • Frequently encountered • May be the initial sign of internal disease • May occur late in the course of the disease • May assist in making the diagnosis • May be obvious or subtle • Overlap of Family Practice and Dermatology
Systemic Lupus Erythematosus • Autoimmune, systemic disease affecting multiple organ systems • The most common connective tissue disease • Especially prevalent in black women – Prevalence 1/250 • Cutaneous lesions present in 85% of patients • Of the 11 Classic Criteria for diagnosing SLE, 4 involve the skin or mucus membranes
Systemic Lupus Erythematosus • Presentation isn’t always “classic” • High index of suspicion • Alopecia and rash may be anywhere on skin
Systemic Lupus Erythematosus • Diagnosis is based on presence of multisystem disease and presence of antinuclear antibodies • Treatment is multifactorial with corticosteroids being the mainstay still • Sunscreen • Antimalarials, methotrexate, dapsone and biologics now are commonly used
Scleroderma • Chronic autoimmune disease of unknown cause that affects the microvasculature and loose connective tissue • Characterized by fibrosis and obliteration of vessels in skin, lungs, GI tract, kidneys and heart • May be localized (Morphea) or systemic (Systemic Scleroderma)
Scleroderma (Morphea) • Morphea – benign and self limited • Usually single or few in number • Red, then white, atrophic, indurated with alopecia
Scleroderma (Morphea) • Treatment is unsatisfactory • Topical or intralesional steroids, PUVA
Systemic Scleroderma (SSc) • Four times more common in women • 10 year survival rate of 21-71% • Clinical manifestations depend on the sites involved • Initial complaints are usually Raynaud’s phenomenon or chronic, non pitting edema of hands and fingers or migratory polyarthritis • Disease may extend to involve upper extremities, trunk, face and finally the lower extremities
Systemic Scleroderma (SSc) Diagnosis • Autoantibodies to Fibrillin 1, Rheumatoid Factor, Anti SS DNA, Anti RNA Polymerase 3, Antitopoisomerase 1, Anticentromere Antibodies • Skin Biopsy
Systemic Scleroderma (SSc) Treatment • Treatment is unsatisfactory • Immunosuppressive Drugs of numerous types • Methotrexate, Cyclosporine, Imuran • Biologics
Dermatomyositis • The most common idiopathic inflammatory myopathy • May occur at any age • Unknown etiology • Autoimmune Disease • Progressive weakness of trunk and major limb muscles • Difficulty in rising from a chair or climbing stairs • Impaired mobility and some muscle tenderness
Dermatomyositis • Bilateral muscle weakness that is progressive • Skin lesions are almost always present from the onset • Maculopapularerythema over bony prominences such as the knuckles, elbows and knees • Red to violaceous plaques with telangiectasias and scales • Gottron’s Papules – polymorphic, erythematous and atrophic plaques
Rheumatoid Arthritis • Disease affects up to 2% of adult women • Onset is sudden or insidious • Symmetric polyarthritis that affects the proximal interphalangeal and metacarpophalangeal joints, the wrists, ankles, knees and cervical spine • Stiffness, painful, warm and tender joints • Fever, weight loss and anemia are prominent
Diabetes Mellitus • Bacterial and fungal infections • Furunculosis, Cellulitis, Erythrasma, and Candidiasis • Hyperglycemia leads to abnormalities in leukocyte function including diminished chemotaxis and phagocytosis
Diabetes Mellitus • Diabetic Dermopathy – atrophic, circumscribed brownish lesions usually on the lower extremities • They resemble post traumatic scarring
Diabetes Mellitus • Thickened Skin, Stiff Joints and ScleredemaAdultorum • 33% of Diabetics have tight, indurated and waxy skin over the dorsa of the hands • ScleredemaAdultorum is strongly correlated with IDDM • Consists of induration of the skin beginning on the posterior and lateral aspect of the neck, is painless and may be progressive
Diabetes Mellitus • NecrobiosisLipoidicaDiabeticorum • Occurs in 0.3% of IDDM Patients • Very distinct • Asymptomatic, atrophic, yellow to brown patches classically on the lower extremities • Telangiectasias are prominent