MR imaging characteristics of lesions identified within the anterior superior temporal subcortical white matter
| Case | Location (R/L) | Maximal Dimension (cm) | Morphologic Feature | Adjacent to SAS (Y/N) | FLAIR Suppression (Y/N) | DWI Restriction (Y/N) | SWI/GRE Blooming (Y/N) | Gadolinium Enhancement (Y/N) | Perilesional FLAIR Signal Change | Imaging Follow-Up (mo) | Change over Follow-Up Period |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | R | 1.0 | Elongated | Y | Y | N | N | N | Mild | 14 | N |
| 2 | R | 1.5 | Elongated | Y | Y | N | N | N | Mild | 38 | N |
| 3 | L | 0.9 | Elongated | Y | Y | N | N | N | Mild | 35 | N |
| 4 | L | 1.5 | Elongated | Y | Y | N | N | N | Mild | 22 | N |
| 5 | L | 0.9 | Round | Y | Y | N | N | N | Mild | 0 | N/A |
| 6 | L | 1.7 | Elongated | Y | Y | N | N | N | None | 11 | N |
| 7 | R | 1.8 | Elongated | Y | Y | N | N | N | Extensive | 0 | N/A |
| 8 | R | 0.7 | Elongated | Y | Y | N | N | N | None | 6 | N |
| 9 | R | 0.6 | Elongated | Y | Y | N | N | N | Mild | 99 | N |
| 10 | R | 0.5 | Elongated | Y | Y | N | N | N | Mild | 0 | N/A |
| 11 | L | 1.7 | Elongated | Y | Y | N | N | N | Mild | 7 | N |
| 12 | R | 1.1 | Elongated | Y | Y | N | N | N | Mild | 0 | N/A |
| 13 | L | 1.9 | Elongated | Y | Y | N | N | N | None | 0 | N/A |
| 14 | R | 1.3 | Round | Y | Y | N | N | N | None | 0 | N/A |
| 15 | L | 1.6 | Elongated | Y | Y | N | N | N | Mild | 112 | N |
Note:—GRE indicates gradient-recalled echo; L, left; N, no; N/A, not applicable; R, right; Y, yes.