Along with SWL, ureteroscopy is a preferred method for the treatment of small-to-medium sized kidney stones located in any part of the urinary tract. Washington University was one of the first centers in the world to offer ureteroscopic stone treatment.
In very rare cases, lichen sclerosus can lead to skin cancer of the perineum (area between the anus and genitals). Seek prompt medical care if you, or someone you are with, have any of these serious symptoms including: 1  Bleeding. 2  Blisters. 3  Painful sexual intercourse. 4  Persistently open lesions.
Learn more about hairy tongue. Lichen planus. Lichen planus is a rash-like condition that can cause tongue discoloration. Usually lichen planus on the tongue occurs as a white color. It can change green when bacteria or yeast begins to grow on it, certain foods or drinks are consumed, or certain products are used. Other symptoms of lichen planus include: