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?

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Case Number : Case 2003 - 08 Feb 2018 Posted By: Iskander H. Chaudhry

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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18 year old male. Shave excision lesion scalp- right side of the scalp.

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User Feedback


Anil Patki

Posted

Spindle cells around vessels

Is this tumour's schema

Should I call it perivascular myoma or myopericytoma?

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I thought I saw some rare nests in the epidermis in Fig 8. So I'm thinking of a melanocytic lesion. Don't think it's a neurothekeoma.

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Anil Patki

Posted

Agree that there are some nests in the epidermis, but the cells in the lower dermis are elongated and show whirling pattern. Could be a co-existing melanocytic nevus.

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John Zhang

Posted

I think it is a spitz nevus. If substantial mitotic figures than atypical spitzoid tumor.

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Dr. Richard Carr

Posted

Slightly desmoplastic, Spitz naevus

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Anil Patki

Posted

Ok. Couldn't diagnose because I haven't seen any. Here in India we hardly biopsy any nevi as melanoma is a rarity

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Saman Fatah

Posted

Dear Iskander, could you please provide a feedback or an update on case 1998 posted on first Feb 2018, thanks.

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Don't see any mitoses. Also think it' s a Spitz nevus.

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Admin_Dermpath

Posted

Dr Chaudhry: 

 

Yes final diagnosis was a Spindle cell Naevus with Spitzoid features. 

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Dr. Mona Abdel Halim

Posted

Beautiful case. My thought was spitz too

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Mani Makhija

Posted

Yes agree with Spitz. Do you think this pattern would be ALK related? Or would be desmoplastic like Dr Carr suggested ? just curious. 

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Dr. Richard Carr

Posted

Dear Mani, Nice question. I'd say it could be ALK case but I'll see if Arnaud de la Fouchardiere might take a look and comment.

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