Hello, * As per my clinical experience, the density of the breast tissue on mammogram is indicated by the level of fat, breast and connective tissue. * Neodensity means appearance of more dense spot than usual echo texture of rest of the breast. * This can be a physiologic change or certain abnormality in terms of pathological process. * The comparison with previous scans give best results of evaluation to comment further. * If it is not found on previou mammogram or increasing in size, changing characteristics , shape or else, one may be advised to get a biopsy report of suspicious region or area focued on mammogram. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Bhagyesh V. Patel