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Look-Alikes Tom Paige Department of Dermatology CCRMC

Look-Alikes Tom Paige Department of Dermatology CCRMC

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Page 1: Look-Alikes Tom Paige Department of Dermatology CCRMC

Look-Alikes

Tom Paige

Department of Dermatology

CCRMC

Page 2: Look-Alikes Tom Paige Department of Dermatology CCRMC
Page 3: Look-Alikes Tom Paige Department of Dermatology CCRMC
Page 4: Look-Alikes Tom Paige Department of Dermatology CCRMC
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An approach to diagnosing a skin disease

• Look at the morphology– Primary lesion– Secondary lesion

• Configuration

• Distribution

• Histopathology

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Skin Features of Lyme Disease

• CDC case definition of Lyme disease– Three skin lesions are recognized

• Early disease– Erythema migrans

– Borrelia lymphocytoma

• Late disease– Acrodermatitis chronica atrophicans

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Testing For Lyme Disease

• CDC recommends a two step process– 1.    The first step uses an ELISA or IFA test. – 2.    The second step uses a Western blot test

that is highly specific for Lyme disease, meaning that it will usually be positive only if a person has been truly infected

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Lyme Disease

• Lyme disease is (True or False ANSWERS)– 1. Named after Sir Edward Lyme who

discovered the cause of the disease in 1988– 2. There are three different species of B.

burdorferi– 3. 78% of cases of symptomatic Lyme disease

present with erythema migrans– 4. The feeding time of the tick is important in

the transmittal of Lyme disease

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