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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 4000! You can review the archived cases and read the suggested diagnoses by users and the final comment by the contributors.
Case are uploaded each week day by 10 am UK time with the correct diagnosis will generally be posted at 8 pm UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

Case Number : Case 4192 - 14 February 2023 Posted By: Uma Sundram

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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19 year old female with hyperpigmented patches and papules.
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Go to records February 2023

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Anil Patki

Anil Patki 4

Posted

Subtle hyperkeratosis, papillomatosis and acanthosis along with increased melanin pigmentation in the basal layer are the clues suggesting confluent and reticulated papillomatosis.

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msofopoulos

msofopoulos 4

Posted

I agree, it looks like confluent and reticulated papillomatosis. How about a PAS stain?

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Meenakshi Batrani

Meenakshi Batrani 0

Posted

Confluent reticulate papillomatosis or Idiopathic eruptive macular pigmentation with papillomatosis. 

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Uma Sundram

Uma Sundram 169

Posted

Confluent and articulated papillomatosis. Pas is negative and CARP is favored clinically over acanthosis nigricans and IEMP.

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