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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 2081 - 29 May 2018 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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65 year old man with lesion on forehead.


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Eduardo Brandán Recalde

Posted

sebaceous carcinoma

 

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vincenzo polizzi

Posted

Borderline tumor between sebaceous adenoma and sebaceoma ( ?Muir-Torre ). 

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Uma Sundram

Posted

My exact differential diagnosis. Sebaceous carcinoma vs sebaceous adenoma vs sebaceoma. The lesion was overall well circumscribed and did not have infiltrative borders. There were areas of well differentiated sebocytes. The architecture of a sebaceous adenoma was not present, so our final diagnosis was sebaceoma. However, the lesion had a crateriform silhouette that has been described in cases of Muir Torre syndrome. So, while we favored sebaceoma, we thought the patient should be worked up for Muir Torre syndrome.

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