Endoscopic ultrasound-guided fine-needle aspiration in patients with lymphadenopathy suspected of recurrent malignancy after curative treatment

Background The diagnosis of lymphadenopathy after treatment of malignancy is sometimes difficult, especially in patients whose treatment was deemed curative and without local recurrence or those who have increased serum levels of related tumor markers. We aimed to evaluate the effectiveness of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) as a diagnostic tool in patients with lymphadenopathy after curative treatment of malignancy.