CT findings and diagnostic value of Gastric stromal tumor
Objective To evaluate the value of CT in diagnosing gastric stromal tumors. Methods CT findings of 20 cases confirmed with gastric stromal tumor by immunohistochemical markers were retrospectively analyzed. Results CT Plain scanning showed the gastric stromal tumors whose shapes were circular or irregular, grew inside cavity, outside cavity or inside and outside the cavity at the same time, homogeneous density or heterogeneous density. Enhanced scanning showed most lesions had obvious delayed enhancement, Adjacent gastric wall of the tumors was normal. In 20 gastric stromal tumors which include 9 malignant tumors and 5 potential-malignant tumors and 6 benign tumors, It should be considered malignant when the tumors are greater than 5cm, irregular shape, Cystic change or crosis,indistinct boundary, way of growth inside and outside the cavity, assaulting the surrounding tissue. Conclusion CT examination play an important role in the diagnosis of location and the benign and malignancy judgment of gastric stromal tumor.