Fig. 1.

Axial T-1 weighted image with gadolinium shows a large enhancing mass arising from the vermis in case 1 (A), following GTR (B), and local recurrence 18 months following HDC (C). Saggital T-1 weighted image with gadolinium shows a large enhancing mass in the superior vermis extending up into the pineal region in case 2 (D), following subtotal resection (E), and axial T-1 weighted image following gadolinium showing metastatic relapse (F) measuring 1.12 cm in the right cerebellum 6 months following HDC. Axial T-1 weighted image with gadolinium showing a large enhancing mass in the right cerebellar hemisphere at diagnosis (G), following GTR (H), and local relapse (I) 12 months following HDC.