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Case No. 248
2011-08-01~2011-08-31
출제자 : 황승배
Hit : 460
| Period | 2011-08-01~2011-08-31 |
|---|---|
| Diagnosis | Intratemporal facial nerve schwannoma |
| Clinical information | C/C : Asymmetric facial expression, Rt 진단은? |
| Discussion | Intratemporal facial nerve schwannoma * Most common location : geniculate ganglion * Variable morphology or imaging appearance according to location - tumor located geniculate fossa ; ovoid or triangular shape * CT - bony margins are smooth, “ benign-appearing” * MR - intermediate to low signal on T1WI, high signal on T2WI - ovoid or triangular, enhancing mass in enlarged geniculate fossa ; tumor tails project into labyrinthine ± anterior tympanic segment of CN7 |
| Correct answer |
Correct AnswerSemi-Correct Answer |