Appearance. Voles, sometimes commonly called meadow mice, are small, ground-dwelling rodents that range from about 5-8 inches long with a body that is more robust than a mouse. They have relatively short legs and tails, and their body fur is brownish and black. The voleâs head is round shaped and the snout is blunt.
Comorbidity must be considered when making recommendations about CRC screening with older patients. In a retrospective study of 404 VA patients over age 75 who underwent colonoscopy and were followed for 5 years, only 8 (2 percent) were diagnosed with colorectal cancer. The majority of patients passed away from other causes. Only age and severity of comorbidity were risk factors for death within 5 years of colonoscopy [3].
And you need a colonoscopy only once every 10 years, starting at the age of 50, as long as the screen is normal. Other tests, like the flexible sigmoidoscopy, video capsule endoscopy and CT colonoscopy, only look at part of the colon and need to be done every five years in order to ensure adequate screening.