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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 1855 - 07 July - Dr Iskander Chaudhry (Invited) Posted By: Guest

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
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64 year old male, lesion on cheek ? blue naevus

Edited by Admin_Dermpath


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Anil Patki

Posted

Botryomycosis / actinomycosis - grain with a granulomatous reaction

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Dr. Mona Abdel-Halim

Posted

Thought of aneurysmal fibrous histiocytoma. 

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Admin_Dermpath

Posted

Lots of views but not many responses :( 

Special stains were negative. 

Hope to get more responses  ......

Iskander

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Arti Bakshi

Posted

Looks like a foreign body reaction to extraneous matter...not sure about the nature of this extraneous brown material though!

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Robledo F. Rocha

Posted

Maybe this is a trauma-induced lesion. The golden-colored material resembles some pigment produced by the breakdown of hemoglobin, like hematoidin.

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Raul Perret

Posted

Looks like a localized form of hemosiderosis which can be caused by many entities, for example acne.

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vincenzo polizzi

Posted

An old organized trombus?

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Nitin Khirwadkar

Posted

Looks like hemosiderin within a thrombus. Certainly in the last image, the pigment is within a vessel.

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Admin_Dermpath

Posted

Many thanks everyone!

 

I have added the Perl's stain! 

 

Yes the diagnosis was localized form of hemosiderosis - as stated the causes are many. 

 

Iskander Chaudhry

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