Dermatology Questions? Ask an Online Dermatologist.
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There are no clear cut features of a melanoma in your report. It describes a compound melanocytic nevus (which is just a regular mole) with some deeper extension as can be seen as these moles age. The reason you have been called in is to make sure all the mole tissue is removed and examined - there is 'lesion present at the margins' of the last excision which means it was not fully excised. Examining all the margins is important to make sure all mole tissue is examined for changes such as cytological atypia to conclusively rule out that there is no melanoma focus in this mole.
Please feel free to ask if you have any queries. I will be happy to continue further and do everything I can to provide you with the service you seek.
Upward migration shows the melanocytes are going towards the epidermis. This can be seen in both atypical moles as well as in early melanomas - in melanomas though these cells will invade the epidermis and replace the cells there. Also the cells moving upwards will show mitotic abnormalities and other atypical features of cancer cells. The stain used (e.g Melan-A) just identifies melanin producing cells and is not in itself an indication of whether these cells are cancerous or not.
I think that should cover it - there are no special questions I can think of to ask your doctor apart from his interpretation of the report.
Please feel free to ask if you still have any questions.