Before revision: Medical uses Oesophagus CLE is effective in detecting premalignant, including Barrett's oesophagus, and malignant (cancerous) lesions in the upper GI tract.
After revision: 450px|Colorectal cancerMedical uses Oesophagus CLE is effective in detecting premalignant, including Barrett's oesophagus, and malignant (cancerous) lesions in the upper GI tract.