A 68-year-old male patient presented with a week of sudden diplopia. He had been diagnosed with nasopharyngeal cancer 8 months prior and had undergone chemotherapy with radiotherapy. Eight-prism diopter right esotropia in the primary position and a remarkable limitation in abduction in his right eye were observed. Other pupillary disorders and lid drooping were not found. After three weeks, the...

We report our findings in a case of ophthalmoplegia caused by a transorbital penetrating brainstem injury. An 8-year-old boy was accidentally injured by a broken fishing fiberglass pole which penetrated through the right orbit and entered the brainstem. Magnetic resonance imaging showed a linear wound that entered and passed through the pons obliquely and reached the fourth cerebral ventricle a...

We present a very rare case of a 29-month-old boy with acute onset right abducens nerve palsy complicated by inferior petrosal sinus septic thrombosis due to mastoiditis without petrous apicitis. Four months after mastoidectomy, the patient fully recovered from an esotropia of 30 prism diopters and an abduction limitation (-4) in his right eye.

which is usually preoperatively diagnosed as a pituitary adenoma, is a very rare non-neoplastic lesion. We report a case of a fibrosing inflammatory pseudotumor located in the pituitary gland, that presented with abducens nerve palsy and was confirmed by histopathological analysis. Knowledge of the imaging features of inflammatory pseudotumors can help avoid unnecessary radical surgery prior to...

A 65-year-old man developed subacute horizontal diplopia due to left abducens nerve (AN) palsy and excessive eye tearing. Brain MRI revealed a hyperintense T2 lesion with an elongated course within the carotid canal, presenting homogenous contrast enhancement (figure 1). The imaging findings were characteristic for internal artery sympathetic plexus (ICSP) schwannoma compressing AN. Subsequent ...

Fifty one patients with abnormalities of horizontal gaze were studied with magnetic imaging of the brain (MRI) and eye movement recordings to identify the loci of lesions responsible for isolated abducens palsy, conjugate gaze palsy and different types of internuclear ophthalmoplegias. The lesions responsible for a particular disorder were identified by overlapping enlarged drawings of the indi...