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Discussion in 'Spot Diagnosis' started by bb100, Mar 16, 2013.

  1. bb100

    bb100 Bronze Member

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    What is the most likely diagnoses?

    dd.jpg
     

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  2. neo_star

    neo_star Moderator

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    Erythema ab igne - showing charecteristic erythematous reticular pattern, interspersed with pale areas ( which are atrophic areas of skin ). In chronic stage it will become brownish-black.

    Xtra Edge from Goodheart's same site differential diagnosis

    etiology / cause
    - Chronic heating causes injury to the skin, though this is not well characterized.
    Infra red in the solar spectrum may play a role in chronic photodamage, but it is difficult to determine what that role is.

    location - Chronic heat damage to the skin occurs on the shins and elsewhere at sites habitually warmed by focal sources of heat – a condition known as erythema ab igne.

    physical sign - Brownish-red reticulate pigmentation is the dominant physical sign , but keratoses and even squamous cell carcinoma can also occur at involved sites.
     

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  3. Emergency medicine Mike

    Emergency medicine Mike Bronze Member

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    Erythema ab igne.
     

  4. bb100

    bb100 Bronze Member

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    I agree with you. this case looks like erythema ab igne
    in this case Livedo pattern of the lower legs with purpura and subcutaneous nodules are seen .
    what may be diferential diagnosis?
     

  5. neo_star

    neo_star Moderator

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    subcut. nodules may be erythema nodosum and marry it with livedo - the first thing that comes to mind is everything under the umbrella of 'vasculitis'

    - polyarteritis nodosa
    - sle
    - rheumatoid arthritis
    - antiphospholipid antibody syndrome

    in my part of the world

    - tb

    and hepatitis b and c ( cryoglobulinemia, esp. sec to hep c is known to giv this pattern and is also ass. with some cases of polyarteritis nodosa )
     

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  6. dupuytren

    dupuytren Bronze Member

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    erythema ab igne
     

  7. neo_star

    neo_star Moderator

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    Vasculitis Differential Diagnosis

    1331341-1331372-1008239-1814621.jpg
     

  8. Gospodin Seki

    Gospodin Seki Moderator Staff Member

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    Toasted skin syndrome
     

  9. bb100

    bb100 Bronze Member

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    Correct Answer :polyarteritis nodosa
     

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