Table 1. Pre- and postoperative cranial nerve deficits.

	Pituitary adenomas ( n  = 30)
	Preop	Postoperative
		Improved	Worse
CN II	19	12	0
CN III	5	3	0
CN IV	0	0	0
CN V	0	0	0
CN VI	1	0	0 (2 a )

Abbreviation: CN, cranial nerve.

^aTransient deterioration.