Maximizing the yield of EUS-guided fine-needle aspiration

摘要: The limitation of EUS as an imaging modality with its lack specificity has been addressed by the development EUS-guided fine-needle aspiration (FNA).1-5 With this advancement, a highresolution is coupled capability FNA to establish tissue diagnosis both primary tumors (i.e., lesions in pancreas, mediastinum, and pelvis) well lymph nodes liver metastasis.6 real advantage EUSguided over endoscopic EUS-assisted that precision needle placement can be accomplished under real-time US guidance using linear array echoendoscope. This enables endosonographer obtain samples from tissues away GI lumen, making many organs accessible FNA. Maximizing yield includes knowing indications, prioritizing sequence multiple lesions, optimizing technique, having attendant cytopathologist, special cytology tests when indicated, avoiding complications.