Jump to content
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 2229 - 27 December 2018 Posted By: Iskander H. Chaudhry

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
Submitted Date :
   (0 reviews)

F78. Lesion right forearm.


  Report Record

User Feedback


Proliferation of singly lying and nested melanocytes in the epidermis with cellular atypia and Pagetoid spread along with solar elastolysis in dermis point toward melanoma in situ.

Share this comment


Link to comment
share_externally

Alex-Ventura-Leon

Posted

Melanoma in situ.

The dermis looks slightly fibrotic.

Share this comment


Link to comment
share_externally

That´s not an easy case. It looks like Lentigo maligna, but I would look for previous melanocytic lesion excision. As Alex said above, there´s a fibrotic dermis that can be a clue to previous biopsy and maybe this is a recurrent nevus.

Share this comment


Link to comment
share_externally

Iskander H. Chaudhry

Posted

Dear All. Thank you for your comments. Yes the scar represents a previous excision of melanoma in situ so IgorSC's comment is very valid. The scar was re-excised as the melanoma in situ reached a margin and this is the re-excision. The differential of recurrent naevus was discussed at length but the degree of atypia and Pagetoid spread rendered a final diagnosis of residual melanoma in situ. 

Share this comment


Link to comment
share_externally



Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...