kromaendoskopiaan
Kromaendoskopiaan, also known as chromoendoscopy, is an endoscopic technique used to enhance the visualization of the gastrointestinal tract lining. This procedure involves the topical application of dyes or stains to the mucosal surface during a standard endoscopy. The dyes selectively highlight subtle abnormalities that might be missed with conventional white-light endoscopy. Different dyes are used depending on the target area and the type of pathology suspected. For instance, indigo carmine is a commonly used contrast dye that is absorbed by abnormal tissue, making it appear darker and more distinct. Methylene blue is another dye that can stain dysplastic or cancerous cells more intensely. Lugol's iodine is used in the esophagus, where it stains glycogen-rich normal squamous cells brown, while abnormal or cancerous cells, which have less glycogen, do not stain or stain lightly. Kromaendoskopiaan is particularly valuable in detecting and characterizing precancerous lesions, such as dysplasia in inflammatory bowel disease, early gastric cancer, and Barrett's esophagus. By improving the detection rate of these subtle lesions, kromaendoskopiaan can aid in more timely diagnosis and treatment, potentially improving patient outcomes. The procedure is performed similarly to a standard endoscopy, with the dye being sprayed onto the mucosal surface through a channel in the endoscope.