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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 1112 - 26th September 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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M80 Back. 10 x 9mm lesion ?Cystic BCC

Case Posted by Dr Richard Carr
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  Report Record
Go to records September 2014

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Dr. Mona Abdel-Halim

Dr. Mona Abdel-Halim 508

Posted

Clear cell SCC more than trichilemmal carcinoma

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Guest Romualdo

Guest Romualdo

Posted

Nodular hidradenoma. If there are moderate numbers of mitotic figures, then atypical nodular hidradenoma.

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Robledo F. Rocha

Robledo F. Rocha 336

Posted

[left]Neoplastic cells seem to bail out from epidermis and, in the two bottom images, some neoplastic cells give evidence of squamous differentiation. So, my first impression is squamous cell carcinoma.[/left]

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Guest Giovanni Falconieri

Guest Giovanni Falconieri

Posted

I think it is malignant. Metastatic carcinoma might be also added to the differential

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Dr. Richard Carr

Dr. Richard Carr 622

Posted

The was a case that has a differential diagnosis of tricholemmal carcinoma v's basal cell carcinoma with tricholemmal differentiation v's tricholemmoma. The immunostains helped a bit weak focal peripheral BerEP4 only (against BCC) and negative CD34 (against tricholemmoma) therefore favoured a tricholemmal carcinoma (variant of follicular SCC). No ducts or lumina to suggest hidradenoma. The lesion was relatively circumscribed and completely excised so only of academic interest. In our view circumscript tciholemmoal carcinoma (a variant of follicular infundibular-tricholemmal SCC) has no potential for metastasis - still unpublished observations but hopefully to submit this winter).

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