EUS
Also written as: EUS — Endoscopic Ultrasound
Endoscopic ultrasound combining endoscopy with ultrasound for detailed GI imaging.
Full Definition
Endoscopic ultrasound is a minimally invasive procedure that combines endoscopy with high-frequency ultrasound to provide detailed images of the gastrointestinal tract wall and surrounding structures. The ultrasound transducer is positioned at the tip of the endoscope, allowing close proximity to target tissues and superior image resolution compared to transabdominal ultrasound. EUS is particularly valuable in gastrointestinal oncology for staging tumors, assessing lymph node involvement, and guiding fine-needle aspiration biopsies. It can evaluate the depth of tumor invasion and help determine resectability of pancreatic and other GI cancers.
Usage
Usage note: Always capitalize all letters when using the acronym.
In Context
- "EUS demonstrated a hypoechoic mass in the pancreatic head with vascular involvement." — Radiology report
- "EUS-guided fine-needle aspiration confirmed pancreatic adenocarcinoma." — Pathology report