A 63-year-old woman presented with an extremely rare oculomotor schwannoma not associated with neurofibromatosis, manifesting as a transient diplopia and ptosis. Magnetic resonance images showed a well-enhanced mass extending from the cavernous sinus to the intraorbital region. Surgical exposure confirmed the tumor originating from the oculomotor nerve in the cavernous sinus. The intraorbital c...

A case is presented of neurilemmoma of the left oculomotor nerve occurring in a 64-year-old hypertensive woman. The incipient tumour produced ptosis, limited inwards rotation of the eyeball, and persistent pupillary dilatation on the left side. The mechanism of this process is discussed, having regard to the interruption of the fibres innervating these structures by the tumour, and considering ...

PURPOSE To report a case of orbital oculomotor nerve schwannoma extending to the cavernous sinus through the superior orbital fissure presenting with proptosis, but without any neurological sign. CASE REPORT A 32-year-old man presented with axial proptosis of his left eye. Visual acuity and other ocular examinations were normal. Orbital magnetic resonance imaging revealed a well-defined fusif...

Cranial motor and sensory nerves arise stereotypically in the embryonic hindbrain, act as sensitive indicators of general and region-specific neuronal development, and are directly or indirectly affected in many human disorders, particularly craniofacial syndromes. The molecular genetic hierarchies that regulate cranial nerve development are mostly unknown. Here, we describe the first mouse gen...

PURPOSE To assess the utility of MR in third cranial nerve palsy. METHODS We reviewed precontrast and postcontrast MR of 50 patients with third cranial nerve palsy. RESULTS MR demonstrated an appropriate lesion in 32 cases. Of these patients, 6 had brain stem lesions and 15 had involvement of the nerve in the cavernous sinus; lesions of the cisternal segment of the nerve were present in 11 ...

Evoked potential was recorded by needle electrode from the oculomotor nucleus in decerebrate cats, following electrical stimulation of the inferior oblique nerve. The evoked potential was usually triphasic, but complex potential with the second and third negative leaves, or with long latency negative waves, was incidentally recorded depending upon the position of the recording electrode. In the...