MCB vs EUS-FNA for Preoperative Pathological Evaluation of Gastric SMT

Shown exactly as written on ClinicalTrials.gov. Your oncologist is the right person to judge whether it fits your situation.

Inclusion Criteria:

* Endoscopic evaluation considers gastric submucosal tumors (SMTs) with a diameter of ≥ 15mm

Exclusion Criteria:

* Endoscopic non bulging lesions.
* The upper gastrointestinal lesions measured by Endoscopic Ultrasonography(EUS) are less than 15 mm.
* Lesions that do not require tissue collection (such as lipomas, varicose veins)
* Patients with cystic lesions
* The patient has uncorrectable coagulation dysfunction (International Normalized Ratio (INR)\>1.5 or platelet count\<50x109)
* Patients with portal hypertension
* Patients with a history of upper gastrointestinal surgery
* Pregnant women
* Patients who refuse to participate in this clinical trial