Ask A Doctor - Melonama - DesiMD Healthcare Services


Hi, I have black vertical line on my right hand middle finger nail, thinking it may be melonama I went to doctor and they did nail culture and The culture report is good.. Now I went to dermatologist And they want to send my nail bed to biospy and I heard the nail bed biospy Is actually small surgery and after that nail won't grow normally.. I am afraid and want to see if any other alternatives to this biospy for melonama test. Thanks Vs - Asked by V K on 02-Sep-2014 04:43:20

Answer Count: 3    Disorder Type: Skin and subcutaneous disorders

  • MBBS
    General Practice

    Answered by Dr. Dasari Navya Teja on 02-Sep-2014 09:20:20


    If you are suspecting melanoma, biopsy has to be done for confirmation. No alternative for this.

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  • Answered by Dr. on 02-Sep-2014 09:47:05


    You have a black spot on right middle finger extending from nail bed in vertical fashion. Dermatologist prescribed culture which was negative for infection. Depending on duration, discolorations of nail can be due to infection (fungal), injury etc. If you had history of injury previous few months, there might be nail bed bleeding. The blood can coagulate and change color into black spot. As the nail grows it shows up as vertical line. As new nail is grown in normal physiological process, color might entirely disappear. If this is not the case, if you suspect it could be some tumor, you need to go in for biopsy.

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Replied by V K on 02-Sep-2014 09:54:56

Thanks for the quick reply. i have this vertical line for the last four months , if nail grows the vertical black line also grows vertically .. it doesn't grow horizontally though , the line starts thin near nail bed and goes wider towards edge ( its very thin line .. about a hair width. after biospy does it look normal and grow normal?
  • Answered by Dr. on 02-Sep-2014 10:10:11


    If there is a pigmented deposit under nail, it removes it by normal growth of nail as you described. If deposit is being removed the amount of deposit under nail keeps decreasing. In that case in few weeks it might disappear on its own, and you do not need a biopsy.

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