What is CASC? The Certified Administrator Surgery Center (CASC) credential is a distinction earned by those in the ASC industry with a comprehensive understanding of the knowledge and skills that the role of an ASC administrator requires. The Board of Ambulatory Surgery Certification (BASC) is the organization that administers the CASC exam.
1 Tender, red splits or cracks at the corner of your mouth (angular cheilitis), which can be caused by infection, a diet too low in vitamins, and over-closure of the mouth in someone who has been without teeth or dentures for some time.  Chapped lips, which may be caused by dry, windy, cold, or very hot weather.
Sometimes color changes in the mouth are a sign of a bodywide disease: 1  Anemia may cause the lining of the mouth to be pale instead of the normal healthy reddish pink. 2  Measles, a viral disease, can cause spots to form inside the cheeks. 3  Addison disease and cancer (such as malignant melanoma) can cause dark color changes.