Imaging findings of the 13 patients, showing locations of conventional MR imaging, SWI (cortex and white matter), and PET abnormalities; for FDG-PET, areas with severe (>20% decrease) and mild (10–20% decrease) hypometabolism are indicated
| Patient | Past CT Scan | Conventional MRI | SWI Abnormality | FDG-PET Hypometabolism | ||
|---|---|---|---|---|---|---|
| Cortex | White Matter | Severe | Mild | |||
| 1 | NA | L P angioma (small) | L F-P | L P | ||
| 2 | R calc | R P angioma (small), plexus | R P, F | R O | ||
| 3 | L P calc (very small) | L sP angioma (small) | ||||
| 4 | Normal (age 1.5 years) | R P angioma R pP atrophy | R F-P | R P | R T | |
| 5 | NA | L p plexus L T angioma | L T | L TO, iF | ||
| 6 | NA | R P, pT angioma, atrophy, R p plexus | R T | R P, pT | R T | |
| 7 | NA | R F, P, pT-O angioma R hemisphere atrophy R p plexus | R F-P, pT-O L iF | [R F*] | R sT, sO R P-F | R O |
| 8 | L hem calc | L hemisphere angioma L p plexus | L P-O, F, T | [L F*] | L T-P-O, iF | L sF |
| 9 | NA | L P angioma, plexus | L P, T | L F, cerebellum | L P-T-O | L F |
| 10 | L P calc | L P, pT, iF angioma | L P-T-O, F | L F | L P-T-O | L F |
| 11 | R P calc | R sP, mT angioma | R sP-F, mT R mO | R aT | R pT-O R sP | |
| 12 | L hem calc | L P-T-O, F angioma L posterior plexus | L P-T, m-i F | L F | L T-P-O | L T-P-O |
| 13 | R F-P calc (age 8 months) | R F-P angioma R F, T, P atrophy | P p-i F | R F-P R med T | R T-P-O, F | R F R T-P-O |
Note:—SWI, susceptibility-weighted imaging; FDG, fluorodeoxyglucose; L, left; R, right; T, temporal; F, frontal; P, parietal; O, occipital; i, inferior; p, posterior; a, anterior; s, superior; m, middle; med, medial; WM, white matter; adj, adjacent; calc, calcification, NA, not available; hem, hemisphere.
* Only short streaks in the centrum semiovale.