Table 1:
Study patients by the MCD subgroups and their conventional structural MR imaging findings
| MCD Subgroups/Variants | No. of Cases | Unilateral MCD | Prenatal CMV Infection | Associated Brain Anomalies |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Ventricles | BGT | Hippocampus | Brain Stem | Cerebellum | CC | ||||
| PMG | |||||||||
| Peri-Sylvian | 16 | 4 | 1 | 9 | 3 | 5 | 2 | 4 | 5 |
| Frontoparietal | 7 | 2 | 4 | 2 | 0 | 0 | 2 | 2 | 2 |
| Generalized | 4 | 0 | 0 | 4 | 1 | 4 | 0 | 2 | 3 |
| Focala | 7 | 2 | 0 | 4 | 2 | 3 | 2 | 3 | 5 |
| Parieto-occipital | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| Multifocal | 6 | 2 | 0 | 3 | 0 | 3 | 0 | 1 | 5 |
| With schizencephaly | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
| Total | 42 | 11 | 5 | 24 | 7 | 16 | 7 | 13 | 22 |
| LISb | |||||||||
| Pachygyria with SBH | 5 | 0 | 0 | 5 | 2 | 3 | 2 | 2 | 4 |
| Pachygyria without SBH | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 2 |
| SBH without pachygyria | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 |
| Total | 8 | 0 | 0 | 6 | 3 | 5 | 3 | 4 | 8 |
Note:—BGT indicates basal ganglia and thalami; CC, corpu callosum.
a
All located in frontal lobe.
b
All LIS cases were bilateral.