
Figure 17. Transient enhancing lesion in Meckel's cave. The 29-year-old female patient presented with left facial pain and numbness. (a) Coronal plane T1 weighted SE image after iv gadolinium-DTPA. An enhancing mass in Meckel's cave on the left (arrow). Initial diagnosis was trigeminal neuroma. (b) Repeat examination 14 months after (a). Complete resolution of the enhancing mass lesion corresponding with disappearance of the patient's symptoms. In retrospect, the mass was presumably inflammatory in aetiology.