Fig. 2From: Serial MRIs provide novel insight into natural history of optic pathway gliomas in patients with neurofibromatosis 1New appearance of an OPG in the left prechiasmatic optic nerve of Patient 8. a No glioma was seen at a scan performed when patient was 1.3 years old. No contrast matter was used in this scan. b An avidly enhancing left prechiasmatic optic nerve glioma with a volume of 1820 mm3 was apparent when the patient was 2.0 years of age. Both the left eye and the left intraorbital optic nerve were normal and well visualized in other image planesBack to article page