Case 29

 
Clinical Information
 

A 69-year-old woman presented with a 0.5-cm flat,pigmented skin lesion on the right dorsal forearm that has been present for many years. There were no other skin lesions or any evidence of neurofibromatosis.

 
 

 

 
 

Low magnification, dermal spindle cell lesion.

Higher magnification.
 
 

Melan-A : Positive

S-100 protein: Positive.

     
 

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