[Endoscopic diagnosis of acute perianal hemorrhage]

Emergency upper endoscopy was performed in 22 consecutive patients with acute peranal hemorrhage. In 8 patients with negative upper endoscopy emergency coloscopy was subsequently performed. In 6 cases the bleeding source was located in the colon. Overall, the correct diagnosis was made by endoscopy in 21 of the 22 patients. Thus, emergency coloscopy is a useful diagnostic procedure in cases with acute peranal hemorrhage and negative upper endoscopy.