Table 3.
Summary of radiological reports from T1-weighted MRI scans of PWS and control participants (cohort 1).
| Group | n (%) | Findings |
|---|---|---|
| PWS (n = 20) | 18 (90.0%) | Normal scan |
| 1 (5.0%) | Dilated ventricles and widened sulci | |
| 1 (5.0%) | Arrested hydrocephalus, possible aqueduct stenosis | |
| Control (n = 40) | 34 (85.0%) | Normal scan |
| 2 (5.0%) | Developmental venous anomaly | |
| 4 (10.0%) | Other benign findingsa |
a
Other findings include small low signal lesion in right genu (possible incidental neuroepithelial cyst), maxillary sinus mucus, mega cisterna magna, small lipoma/dermoid in infundibular recess. None of the findings met exclusion criteria.