Nail Bed Biopsies


- Discussion:
    - indicated for the diagnosis of nail tumors or unexplained deformities;
    - may be performed using "punch method" or thru open nail bed biopsy;
    - open biopsies should use transverse incisions in the nail matrix and longitudinal incisions in the nail bed;
    - biopsy material should not be handled directly, but rather should be removed with a needle;

- Nail Matrix Biopsy:
    - if possible avoid biopsy thru the nail matrix, and especially avoid biopsy of the more proximal matrix (as this contributes to the surface of 
         the nail);
    - biopsy is indicated for pigemented longitudinal streaks (which are suspicious for melanoma;
         - in this case mark the proximal nail fold to assist w/ locating the pathologic matrix (after the nail is removed);
    - open biopsies should use transverse incisions in the nail matrix and longitudinal incisions in the nail bed



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Tuesday, September 6, 2011 12:53 pm