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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 709 - 5 Mar 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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80 years-old female with a recurrent lesion behind the ear.
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Go to records March 2013

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nick turnbull

nick turnbull 7

Posted

pilar tumour?

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Eman El-Nabarawy

Eman El-Nabarawy 69

Posted

Trichilemmal carcinoma.

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Guest Bansal_

Guest Bansal_

Posted

Trichilemmal carcinoma

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Robledo F. Rocha

Robledo F. Rocha 336

Posted

Clear-cell tumor with atypical nuclei and brisk mitotic activity. Between tumor cells there are entrapped masses of hyalinized and myxoid stroma. Foci of peripheral palisading resembling the outer root sheath of hair follicles.
Trichilemmal carcinoma is my preferred hypothesis, but immunohistochemical panel is mandatory in order to distinguish from others clear-cell tumors of the skin.

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Dr. Mona Abdel-Halim

Dr. Mona Abdel-Halim 508

Posted

Trichilemmal carcinoma.

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Hanan Vaknine MD

Hanan Vaknine MD 18

Posted

[color=#222222]In the absence of obvious epidermal connection and in the presence of mucin deposition I would prefer much less exotic and controversial tumor, [b]namely BCC, recurrent with clear cell change[/b] [/color]

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Guest
Trichilemmal carcinoma vs hidradenocarcinoma

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Iskander H. Chaudhry

Iskander H. Chaudhry 49

Posted

This was a difficult one, it's BCC with amyloid and focal clear cell change.

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