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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 2954 - 02 November 2021 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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35 year old male with lesion of the back.


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Cem Leblebici

Posted

1 minute ago, vincenzo said:

A weird, not well circumscribed, SCL. 

Agree. Dermal SCLs can be not circumscribed. 

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21 hours ago, Richard Logan said:

SCL?  Please elaborate.

I think it means spindle cell lipoma

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Victor Delgado

Posted

There are some islands of mature adipose tissue intermingled with wide septal of connective tissue, inside of them we can see spindle cells CD34 positive. Agree with Spindle Cell Lipoma.

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46 minutes ago, Victor Delgado said:

There are some islands of mature adipose tissue intermingled with wide septal of connective tissue, inside of them we can see spindle cells CD34 positive. Agree with Spindle Cell Lipoma.

Agree

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Richard Logan

Posted

12 hours ago, Victor Delgado said:

There are some islands of mature adipose tissue intermingled with wide septal of connective tissue, inside of them we can see spindle cells CD34 positive. Agree with Spindle Cell Lipoma.

Yes, I too agree.  It is interesting that this example shows the SCL infiltrating around the normal fat lobules.  In most of the other examples on the website (see below) the SCL infiltrates into the lobules, in some cases obliterating them completely.

 

For comparison:

Case 132 December 2010

Case 290  July 2011

Case 458 March 2012 (superb example)

Case 551 19th July 2012

Case 2098 21st June 2018

Case 2176 11th October 2018

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Uma Sundram

Posted

Spindle cell lipoma. Although they often have a myxoid background, I thought the myxoid background here was quite striking and may get people to think of other myxoid soft tissue tumors.

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