Abstract
EUS-guided fine needle aspiration (EUS-FNA) has significantly prevailed in the Western countries, and recently, it has been gradually recognized among Japanese endoscopists. EUS-FNA is useful for not only pancreatic disease, but also mediastinal or abdominal lesions, and many authors have evaluated significantly high diagnostic value as well as safety. In this case series, we performed 61 cases of EUS-FNA, and 13 cases of idiopathic mediastinal or abdominal mass, which revealed 2 cases of sarcoidosis, 2 cases of schwannoma, 4 cases of malignant lymphoma, 1 case of bronchogenic cyst, 1 case of lung cancer, 1 case of cancer from unknown origin, 1 case of benign glanulamatous inflammation, and 1 case of adrenal adenoma. Based on our cases and previous article, EUS-FNA is safe, and a minimally invasive procedure with high diagnostic value.
