Table 1.
Clinical Characteristics of subjects with atypical duplications
| Subject ID | Chronological Age at examination | Autism | Mean Mental Age | Seizures | Facial Dysmorphisms |
| 00.16 | 74 m | Yes | 9.5 mos | Infantile spasms | Epicanthus, low nasal bridge, unfolded ears |
| 99.30 | 123 m | Yes | 10.75 mos | Absence seizures | Microcephaly, epicanthus |
| 03.46 | 102 m | Yes | 13.75 mos | Infantile spasms, Lennox Gastaut | Epicanthus, unilateral cryptorchidism |
| 99.10 | 64 m | Yes | 24 mos | none | Epicanthus, low nasal bridge, unfolded ears |
| 99.12 | N/A | No | N/A | none | none |