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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 1010 - 7th May 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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15 year-old male, with lesion in left popliteal fossa.

Case posted by Dr. Hafeez Diwan.


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Guest Romualdo

Posted

This is a biphasic tumor. The predominant component is represented by numerous small groups and fascicles of myoid spindle cells with pale cytoplasm and bland nuclei. Collagen separates these cellular groups. The second component, more subtle, is represented by scant blue foci made of numerous small blood vessels and small intervascular cells with scant cytoplasm. These foci are hemangiopericytoma like. These findings are diagnostic of myofibroma.

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Mark A. Hurt MD

Posted

Also favor "cellular" neurothekeoma. Differential includes dermal Spitz's nevus (doubt).

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Dr. Richard Carr

Posted

Also favour cellular neurothekeoma.

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Eman El-Nabarawy

Posted

First impression cellular neurothekoma.

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Dr. Mona Abdel-Halim

Posted

I also thought first of cellular neurothekoma.

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Guest Jim Davie MD

Posted

Agree with cellular neurothekoma, rule out Spitz.

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Dr. Hafeez Diwan

Posted

Agreed. Cellular neurothekeoma. Melanocytic markers were negative.

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