The data of MRI before and after appling Diineglumine Gadopentetate were comparatively studied in 38 cases of neuromatous patients. The results showed that medial contrast enhancement appehred in 86. 8% neuroma and the location,number and inorphologic features of neuromatous focus were completely shown by appling Dimeglmine Gadopentetate. It suggests that Dimeglumine Gadopentetate may play an important role in finding out smaller focus and tumour after operation, acertaining relationship between tumour and its surrounding structure, instructing the treatment scheme,etc. The Dimeglumine Gadopen...