For those with low vision, a GPS package on a mobile phone which utilizes screen magnification to enlarge the text on the phone's display is another possibility. One of the many uses of GPS for me is when riding a city bus. While I do have some residual hearing, I do not have any vision.
A polyp is an abnormal growth of tissue projecting from a mucous membrane. If it is attached to the surface by a narrow elongated stalk, it is said to be pedunculated. If no stalk is present, it is said to be sessile. Polyps are commonly found in the colon, stomach, nose, ear, sinus(es), urinary bladder, and uterus.
a footlike, stemlike, or narrow basal part or structure, such as a narrow strip by which a graft of tissue remains attached to the donor site. pedicle of vertebral arch one of the paired parts of the vertebral arch that connect a lamina to the vertebral body.