Challenge: What is shown here, and what does it signify?Image shown under Fair Use.
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I put together these medical challenges. The cases are hypothetical and do not necessarily represent actual or typical presentations of medical diseases. Disclaimer is at the bottom of this page.
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3 comments:
Acanthosis nigricans: insulin resistance
This is Acanthosis Nigricans.. It is a marker of insulin resistance.. in some cases it may be a marker of internal malignancy as well (not directly a metastatic manifestation, but indicative of underlying malignancy)
yes, i know it was too easy :P. nice point on the internal malignancy!
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Velvet
Acanthosis nigricans is associated with obesity, insulin resistance, type II diabetes mellitus, and certain cancers (gastrointestinal and lung). Lesions are gray-brown to black, rough, with thickened plaques and prominent skin lines occurring in flextural areas (axillae, back and sides of neck, inguinal creases, inframammary). The texture is velvety.
Sources: UpToDate; dermimages.med.jhmi.edu.
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