Erythrasma is a superficial skin infection caused by Cory-nebacterium, a normal inhabitant of the skin. The infection typically occurs in intertriginous spaces, especially in obese, hyperhidrotic, or diabetic patients (Fig. 33-39). Moderate itching and discomfort may occur, and the infected skin is often reddish brown and may be slightly raised, with some central clearing. The lesions are largely confluent but may have poorly defined borders. Because of the production of porphyrins by the infecting corynebacteria, Wood's light demonstrates the lesions as a coral red. However, if the patient has recently washed the affected area, the coral-red fluorescence may be absent. Erythrasma is often confused with a fungal infection. Erythrasma may be treated with oral or topical erythromycin or clindamycin.

sion from J Fam Pract 2008; 57(4)2253-255) Figure 33-39 Erythrasma in groin. (© Richard P. Usatine.)

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Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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