These cells are examined in a lab for signs of abnormalities that could lead to cancer, Kalavar said. (health.com)
They used state - of - the - art DNA sequencing technology to screen for retrotransposons in tissue samples taken postmortem from three individuals who were healthy when alive and had no neurological disease or signs of abnormality in their brain tissue. (scientificamerican.com)
Other signs of abnormality include nipple discharge from only one breast and discharge that occurs spontaneously without anything touching, stimulating, or irritating your breast. (webmd.com)