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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 1971 - 19 Dec 2017 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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41 year old male with lesion on right flank.

Edited by Admin_Dermpath

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Uma Sundram


Yes, dysplastic nevus. There can be variability in how these are graded. A few years ago a survey was conducted at the LDS and the response from the audience varied from benign nevus to melanoma. My approach to these lesions is to recommend a re excision for lesions that are of moderate to severe architectural and cytologic atypia. The older the patient, the more concerned I tend to be. I also have a low threshold for re excision of lesions that look like this, but are on the face of an older patient (I tend to use 60 years of age as a cut off).

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Dr. Richard Carr


Compound naevus with slight phenotype heterogeneity.

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