Abstract:Objective We explored the clinicopathological and endoscopic ultrasonography (EUS) features of submucosal lesions (SML) and the upper gastrointestinal tract, with the aim of improving diagnostic performance for similar lesions.Methods Retrospective analysis was made on the clinical data of 147 patients from December 2008 to December 2020 and shown the presence of upper digestive tract uplifting changes by gastroscopy, the clinicopathological and EUS characteristics were analyzed.Results In total, 70 extraluminal compression cases and 77 SML cases were included. Among the 27 extraluminal compression cases in the esophagus, compressions by aorta (20 cases) and lymph nodes (5 cases) were in the majority. Among the 36 extraluminal compression cases in the stomach, compressions by spleens (7 cases), pancreatic head malignancies (4 cases), pancreases (4 cases), gallbladders (4 cases) and transverse colons (4 cases) were the most common. Among the 7 extraluminal compression cases in the duodenum, compressions by pancreatic head malignancies (3 cases) and gallbladders (2 cases) were the most popular. Among the 49 esophageal SMLs, leiomyomas (34 cases) and cysts (11 cases) were in the majority. Among the 23 gastric SMLs, ectopic pancreases (9 cases), ipomas (6 cases) and gastrointestinal stromal tumors (5 cases) were in the majority. Among the 5 duodenal SMLs, cysts were in the majority (3 cases).Conclusion Aorta and lymph node are most common causes of compressions in the esophagus, then leiomyoma and cyst are in the majority of esophageal SMLs. Spleen, pancreatic head malignancy, gallbladder, pancreas, and transverse colon are the most common causes of compressions in the stomach, then ectopic pancreas, lipoma, and gastrointestinal stromal tumor are in the majority of gastric SMLs. Pancreatic head malignancy and gallbladder are most common causes of compressions in the duodenum, then cyst is in the majority of duodenal SMLs.