Advances in Pancreatic Endoscopy
Charles J. Lightdale, MD, Consulting Editor “Risky Business” is a title that springs to mind when considering an issue of the Gastrointestinal Endoscopy Clinics of North America on the subject…
Future Directions in EUS-guided Tissue Acquisition
Endoscopic ultrasound fine-needle aspiration is considered the technique of choice for acquisition of tissue in and around the digestive tract. The emergence of selective, targeted therapies, directed toward a particular…
Pitfalls in EUS FNA
Although endoscopic ultrasound (EUS) fine-needle aspiration (FNA) is a safe and accurate procedure, the diagnostic yield varies. Factors contributing to the diagnostic accuracy of EUS FNA include endosonographer and cytopathologist…
Tips to Overcome Technical Challenges in EUS-guided Tissue Acquisition
The diagnostic yield of EUS-FNA depends on several factors, such as the experience of the endosonographer, the characteristics of the lesion, the clinical status of the patient, the size and…
Techniques for Endoscopic Ultrasound-Guided Fine-Needle Biopsy
Although endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is the method of choice to obtain samples to reach definitive diagnosis of lesions of the gastrointestinal tract and of adjacent organs, it cannot…
Techniques for EUS-guided FNA Cytology
This article addresses the technique of endoscopic ultrasound–guided fine-needle aspiration of solid lesions to obtain cytologic specimens. The technique can be broken down into a sequence of steps. The ultimate…
Endoscopic Ultrasound-Guided Fine-Needle Aspiration Needles
Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is increasingly used as a diagnostic and therapeutic tool for pancreatic and other gastrointestinal disorders. Several factors affect the outcome of EUS-FNA, one of which…
How Can an Endosonographer Assess for Diagnostic Sufficiency and Options for Handling the Endoscopic Ultrasound-Guided Fine-Needle Aspiration Specimen and Ancillary Studies
Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) has become well established as a minimally invasive technique in diagnosing and staging various gastrointestinal, pancreaticobiliary, and retroperitoneal malignancies. The diagnostic accuracy of this procedure…
Definitions in Tissue Acquisition
This article identifies key fundamentals of tissue acquisition, sample preparation, and staining. It defines the understanding of different aspects of sample preparations, such as types of smear-preparation techniques, touch preparations,…
Beyond Cytology
There are 2 main reasons why oncologists may require additional tissue and a histologic section in addition to cytopathology from FNA specimens: improved diagnostic accuracy and molecular characterization of tumors….
