Canadian Journal of Gastroenterology (Jan 2010)
Gastroscopy Following a Positive Fecal Occult Blood Test and Negative Colonoscopy: Systematic Review and Guideline
Abstract
BACKGROUND: A sizeable number of individuals who participate in population-based colorectal cancer (CRC) screening programs and have a positive fecal occult blood test (FOBT) do not have an identifiable lesion found at colonoscopy to account for their positive FOBT screen.