Imaging Manifestations and Pathological Grading of Gastrointestinal Neuroendocrine Neoplasms
ZHOU Bing,SU Gang,LI Bin,WANG Sheng-bai
Department of Radiology, Jiaxing TCM Hospital, Jiaxing Zhejiang ( 314000), China
Abstract:
Objective To investigate the imaging features of gastrointestinal neuroendocrine tumors and to predict the value of pathological grading. Methods The imaging ?ndings and clinical data of 14 patients with gastrointestinal neuroendocrine tumors were retrospectively analyzed. The pathological grading of the tumors was divided into neuroendocrine tumors (NET) group (G1 and G 2 ) and neuroendocrine cancer (NEC) group (G3). The differences between the two groups were analyzed according to the CT and MRI manifestations of the tumors. Results One case was located in esophagus, 2 cases in stomach, 4 cases in small intestine, 2 cases in appendix, 3 cases in colon and two cases in rectum. In the NET group, there were 6 cases of grade G1 and 4 cases of grade G2. And in the NEC group, there were 4 cases of grade G3. Conclusion Gastrointestinal neuroendocrine tumors have certain imaging characteristics. The size, shape, margin, even degree, invasion and metastasis of the tumors can be used to predict the pathological grading preoperatively.
