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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 4170 - 13 January 2023 Posted By: Iskander H. Chaudhry

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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6mm punch biopsy right neck. ?Discoid lupus, ??Psoriasis, ?Lichen planus pigmentous
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Anil Patki

Anil Patki 4

Posted

The acanthosis is irregular. There are no features of psoriasis. No basal cell damage, hence DLE and lichen planus pigmentosus are ruled out. I think this is lichen simplex chronicus, a common site for which is the neck.

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Meenakshi Batrani

Meenakshi Batrani 0

Posted

17 hours ago, Anil Patki said:

The acanthosis is irregular. There are no features of psoriasis. No basal cell damage, hence DLE and lichen planus pigmentosus are ruled out. I think this is lichen simplex chronicus, a common site for which is the neck.

Agree

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vincenzo

Itchiness is an important symptom inn psoriasis. So it could be a traumatized psoriasis. 

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Iskander H. Chaudhry

Iskander H. Chaudhry 49

Posted

This case is of psoriasis.  The features show a psoriasiform hyperplasia with some thinning of the supra-papillary plate and surface crust. Confirmed on clinical discussion.

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