PT  - JOURNAL ARTICLE
AU  - Larson, T L
AU  - Wong, M L
TI  - Primary mucocele of the petrous apex: MR appearance.
DP  - 1992 Jan 01
TA  - American Journal of Neuroradiology
PG  - 203--204
VI  - 13
IP  - 1
4099  - http://www.ajnr.org/content/13/1/203.short
4100  - http://www.ajnr.org/content/13/1/203.full
SO  - Am. J. Neuroradiol.1992 Jan 01; 13
AB  - Mucoceles of the petrous apex are rare. Their MR appearance varies depending on the degree of hydration or inspissation of the contents. Concise preoperative diagnosis is helpful, since mucoceles are better drained to the mastoids via an infralabyrinthine approach rather than the more risky middle cranial fossa approach used for cholesteatomas.