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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 1700! You can review the archived cases and read the suggested diagnoses by users and the final comment by Dr Uma Sundram, the Editor-in-Chief and main spot diagnosis host. Case are uploaded each week day by 10 a.m. UK time with the correct diagnosis will generally be posted at 8 p.m. UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

Case Number : Case 2863 - 28 June 2021 Posted By: Dr. Mona Abdel-Halim

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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F 19 ,Discrete keratotic plaques over the right sole since early childhood


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Krishnakumar subramanian

Posted

epidermis and dermis with thick granular layer. there is a small foci of parakeratosis in somewhat vertical orientation. The granular layer is thinned beneath it. Some sort of Porokeratosis

 

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Richard Logan

Posted

I think this is a linear epidermal naevus.

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daniellindsay

Posted

Could also consider hereditary forms of plantar keratoderma? - Given onset in childhood, but unilateral presentation would be unusual for this. Needs CPC. 

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volha

Posted

Linear Punctate Palmoplantar Keratoderma

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Dr. Mona Abdel-Halim

Posted

Thank you all!

This was diagnosed by CPC as punctate porokeratotic keratoderma. Unilateral cases are rare but have been reported.

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Hala M. El-hanbul

Posted

Very nice ..many thanks 

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