Endoscopy

Endoscopy is a medical procedure that uses an instrument with a camera to examine internal body passages. Flexible endoscopes can also deliver tools for sampling tissue or treatment.

Endoscope: A medical instrument that enters the body to provide images or perform procedures. Its camera, insertion tube, and working channels make flexible endoscopy possible.
Upper gastrointestinal endoscopy: Examination of the esophagus, stomach, and duodenum with an endoscope passed through the mouth. It is a common flexible procedure for investigating upper digestive symptoms and lesions.
Medical imaging: Techniques that create images of the body's internal structures for diagnosis or treatment. Endoscopy is one form of internal imaging, alongside methods that do not enter passages.
Colorectal cancer screening: Testing people without symptoms to detect colorectal cancer or precancerous changes. Screening colonoscopy can find and remove precancerous polyps before cancer develops.
Endoscopic imaging: The capture and display of images from inside the body using an endoscope. The camera gives clinicians a direct view of mucosal surfaces and lesions.
Colonoscopy: Endoscopic examination of the colon, usually through an instrument passed through the rectum. It detects colorectal abnormalities and allows removal of many polyps.
Computed tomography: An imaging method that reconstructs cross-sectional views from X-ray measurements. CT depicts structures through the body, while endoscopy directly views a passage's surface.
Post-endoscopic infection: An infection occurring after an endoscopic procedure, sometimes linked to contaminated equipment or procedure-related exposure. Inadequate scope reprocessing can transmit pathogens between patients.
Endoscopic biopsy: Tissue sampling performed through an endoscope for laboratory examination. Biopsy turns a visual abnormality into tissue that can be diagnosed.
Bronchoscopy: Endoscopic examination of the trachea and lower airways. It applies the same camera-guided approach to respiratory passages.

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