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 2052 - 18 April 2018 Posted By: Dr. Hafeez Diwan

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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7 year-old dog with biopsy of tumor on left ear. Clinical impression: SCC, KA.

Edited by Admin_Dermpath


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How old is a 7-yeat-old dog in human age? Looks like an atypical plasma cell proliferation in my eyes. I guess it' s probably cheaper to show the lesion to a veterinarian pathologist than a pathologist in the usa who would do tons of immunostains to figure it out what the cells are and still do not know what the disease is. Actually the vetenerian probably knows what it is clinically ( at least based on my experience with my own dogs).

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Anil, Thanks.

I think my daughter once told me that one dog year is equal to 7 human years. Now I got the confirmation.

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Dr. Hafeez Diwan

Posted

This was a difficult case for me given that I have no experience with veterinary dermatopathology.  I was thinking these were plasma cells initially, but they didn't mark like plasma cells.  They were positive for CD117, so my colleagues and I were thinking of a mastocytoma.  However, this case was reviewed by a verterinary pathologist who considered this to be a cutaneous histiocyoma.

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yes my dog get the same thing. Usually it grows really fast and just goes away by itself. I think that was my vet told me.

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