ABSTRACT

This chapter explores that the themed presentation encourages quick, focused study and detailed answers aid comprehension and encourages familiarity with cranial nerves with essential diagrams, colour images and sample MRIs. Pituitary adenomas compress the optic chiasm from below and so even though the deficit is a bitemporal hemianopia, the superior temporal quadrants are actually slightly worse than the inferior temporal quadrants. Craniopharyngiomas often compress the chiasm from above and hence the opposite is true, the deficit is slightly greater in the inferior temporal quadrants. Bell’s palsy is ipsilateral paralysis of the upper and lower face, with inability to close the eye on the involved side. It is the complete destruction of the facial nucleus or its efferent fibres.