1) Knosp E, Steiner E, Kitz K, et al:Pituitary adenomas with invasion of the cavernous sinus space:a magnetic resonance imaging classification compared with surgical findings. Neurosurgery 33:610-617, 1993
2) Micko AS, Wohrer A, Wolfsberger S, et al:Invasion of the cavernous sinus space in pituitary adenomas:endoscopic verification and its correlation with an MRI-based classification. J Neurosurg 122:803-811, 2015