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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 2803- 5 April 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 74,Scaly erythematous plaque with peripheral pigmentation on the back


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Richard Logan

Posted

Superficial, multifocal BCC - peripheral pigmentation is a common clinical feature.

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Saw this phenomena pretty common: basaloid proliferations seen in background of pigmented macular SK. The nature of those basaloid proliferation actually is regarded as mostly hamartomatous rather that true SBCC. I am sure there are  rare "true SBCC" among those as reported before.  here is the reference:  

Basaloid tumors arising from seborrheic keratosis: Malignant basal cell carcinoma or benign basaloid follicular hamartomatous proliferation?

First published: 04 November 2019
 

https://onlinelibrary.wiley.com/doi/10.1111/cup.13607

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Superficial type BCC. Agree with Richard. 

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Alex-Ventura-Leon

Posted

Agree with Superficial BCC

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Krishnakumar subramanian

Posted

superficial spreading BCC

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Dr. Mona Abdel-Halim

Posted

Yes, indeed! Superficial BCC

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