Abstract:Objective To observe the CT manifestations of gastric stromal tumors(GST), and explore the value of CT in the diagnosis and differential diagnosis of GST. Methods Fifty-three patients with GST diagnosed by CT in Nanjing Jiangbei Hospital from January 2016 to November 2020 were retrospectively analyzed, 49 cases of GST confirmed by surgical pathology (immunohistochemistry), 4 cases of other diseases misdiagnosed as GST, CT signs analysis was carried out. Results The maximum diameter of 49 GST was 10-73 mm, 41 cases of low-medium risk, and 8 cases of high-risk. There were 23 cases of submucosal type, 9 cases of intermural type, and 17 cases of subserosal type. CT-enhanced arterial stage tumors had different degrees of enhancement, the benign GST was characterized by uniform mild to moderate strengthening, the malignancy GST was characterized by uneven, medium and high reinforcement. The venous stage lesions was further strengthened, the strengthening range of the balance period and the delay period could be increased or decreased. The 4 cases of CT misdiagnosis were 2 cases of gastric schwannoma, 1 case of ectopic pancreas, and 1 case of fibrosarcoma. Conclusion CT scan is pivotal in confirming GST and enhanced CT is of great clinical value in the differential diagnosis of GST.