How can we mark the area as we see in dermoscope?
I am using Heine delta dermoscope (hand held). When I remove the dermoscope the area cannot be precisely located then and when you see through the dermoscope, I am not able to mark the site.
Precision will definitely add to the value of diagnosis.
I don't use a dermascope for biopsy.
The problem that you have said is quite natural. Dermascope picture is magnified , hence when you see horough a magnified picture make a circle around the dermascope. use a marker pen. calculate the magnification and deduce the area. you will be near the area of biopsy.
You also can use power drill biopsy which is used in FUE. probably using a larger bore.
Just as you do Botox markings .
The other alternat is to use cedar wood oil.
Thank you for the reply.
Even with marker pen ,its getting smudged.
May be the options, I ll try out
When you use a dermascope the part is first identified.
the area of interest is marked with a white pencil.
when you place the dermasope boundary of the scope can be marked with a pencil.
make an imaginary cross while seeing the area
imaginary markings of 12. 3. 6. 9 clockwise is made .
point and the try to take the biopsy. may be itwll help
Thank you so much for active answering.
Well Sir , I tried but not able to stop smudging, May be a different brand skin pencil will help. I also tried passing a thin cotton thread underneath the dermoscope with markings and identifying the lesion to be biopsied. This also is not working as per expectation.
what are you targeting ,epidermis or dermis.
smudging can be seen if the lens is damaged, out of focus, no proper illumination.
I believe your word of smudge may be for gross view. or dermascopic view.
I don't understand what you are trying to achieve by marking the lesion. They dematosciope can assist you with your differential but pathology is not necessary to be correlated at the exact same spot as you are looking at with the scope. The dematoscope is a tool to help you with your differential diagnosis but is ancillary. If you are looking at a mole you need to take the whole mole off anyway. For rashes clinical exam and the most active area is the place to be biopsied.
It you you somehow stuck on the marking concept then use alcohol to degrease the skin first, before you mark and try a ballpoint pen not a roller ball that smears. Don't touch it and it won't smear.
Thanks Luciann for your opinion. I am trying to a study dermatoscopy in cutaneous amyloidosis. Every patient who consents under goes a skin biopsy. Dermatoscopy and pathological correlation was the objective
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