Prospective Cytological Assessment of Gastrointestinal Luminal Fluid Acquired During EUS: A Potential Source of False-Positive FNA and Needle Tract Seeding

Abstract

Malignant cells are commonly present in the GI luminal fluid of patients with luminal cancers and can also be found in patients with pancreatic cancer after EUS FNA. Further study is needed to determine the impact of these findings on cytological interpretation, staging, risk of needle tract seeding, and patient care and outcomes.