Preoperative MR imaging data of 13 patients with atypical teratoid/rhabdoid tumors
| Patient No./Age (y)/Sex | Tumor Location | Tumor Size (cm) | Hemorrhage | Cyst/Necrosis | Long TR/Long TE (T2WI) | FLAIR | ADC | Postgadolinium |
|---|---|---|---|---|---|---|---|---|
| 1/2/F | Vermis | 3 ×3 .2 × 3.5 | − | + | 1+ | 3+/heterogeneous | ||
| 2/4/M | Vermis | 4 × 4 × 3.4 | − | + | 1+ | iso | Decreased | 2+/heterogeneous |
| 3/10/M | Vermis | 3.8 × 4 × 3.8 | + | + | 1+ | 1+/heterogeneous | ||
| 4/3.2/M | Cerebellar hemisphere | 2.8 × 3.8 × 3 | − | + | iso | iso, 1+ | 3+/heterogeneous | |
| 5/1.3/M | Midbrain | 1.2 × 1.3 × 1.2 | − | − | 1+ | 1+ | 3+/homogeneous | |
| 6/0.8/F | Cerebello–pontine angle cistern | 3 × 3.2 × 3 | − | + | iso | 3+/heterogeneous | ||
| 7/5/M | Frontal lobe | 6 × 6.5 × 9 | + | + | iso | iso | 3+/heterogeneous | |
| 8/3.4/F | Frontal lobe | 5.2 × 4.8 × 6 | − | + | iso | iso | Decreased | 3+/heterogeneous |
| 9/4/M | Frontal lobe | 4.2 × 7 × 6.5 | + | + | iso | 3+/heterogeneous | ||
| 10/4/F | Septum pellucidum | 3.8 × 3.4 × 3.8 | − | + | iso | 1+/heterogeneous | ||
| 11/0.7/F | Pineal | 2 × 2 × 2.5 | + | + | 1+ | iso | Decreased | none |
| 12/0.3/F | Pineal–midbrain–cerebellum | 4 × 3 × 2.2 | + | + | 1+ | Decreased | 1+/heterogeneous | |
| 13/0.8/M | Pineal–midbrain–cerebellum | 3.5 × 2.8 × 2.8 | − | + | 1+ | 3+/heterogeneous |
Note:—Signal intensity on T2WI and FLAIR refers signal of atypical teratoid/rhabdoid tumors relative to gray matter with iso (isointense) indicating the same as and 1+ and 2+ being progressively higher in signal. Apparent diffusion coefficient (ADC) of the atypical teratoid/rhabdoid tumors is listed relative to normal uninvolved gray matter. For postgadolinium contrast enhancement, none indicates no enhancement and 1+, 2+, and 3+ represent progressively greater degrees of enhancement.