Seborrheic keratosis are non-cancerous growths. They are generally brown but can differ from gentle brown to black. They change in size from a number of millimeters to larger than 10 millimeters in diameter. Their principal attribute could be the waxy, “pasted-on” or “trapped-on” physical appearance. Disclaimer: The information supplied in https://www.sgvascularctr.com/understanding-benign-tumor-treatment-options/