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ID#:15495
Description:The skin on this patient’s thigh displayed a lesion that had been diagnosed as early erythema necroticans, also known as “Lucio's phenomenon”, or “spotted leprosy of Lucio”. It was ruled out as a chemical burn through the process of a differential diagnosis due to the similar appearance exhibited by either pathologic condition.
Erythema necroticans is a phenomenon brought about due to the invasion of cutaneous vascular elements by the bacterium, Mycobacterium leprae, and its symptoms include inflammatory redness, which can lead to necrotizing ulcerations. This occurs when pure primitive diffuse lepromatous leprosy (PPDL) is allowed to go untreated, or the ailment becomes a form of the disease known as relapsing leprosy.
High Resolution: Click here for hi-resolution image (18.35 MB)
Content Providers(s):CDC/ Arthur E. Kaye
Creation Date:1970
Photo Credit:
Links:CDC – National Center for Emerging and Zoonotic Infectious Diseases (NCEZID): Hansen’s Disease (Leprosy)
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CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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