| Phenotype details |
see paper; ..., normal pregnancy, normal delivery; no hypotonia; delayed sitting; 19m-walk; no ataxia; no tremor; dysmetria; dysarthria; impaired fine motor skills, frequent falling; speech delay (1y); no intellectual disability; impaired social interactions, impaired decision making; learning difficulties; 1m-moderate bilateral sensorineural deafness; normal ears; strabism; 5y4m-MRI brain short mesencephalon, thin pons, small protuberance with abnormal signal, accentuation bulbo-protuberantial groove, laterally enlarged medulla, with anterior cleft, vermian hypoplasia, normal cerebellar hemispheres, normal vestibulocochlear nerve, normal cochlea, normal semi-circular canal, absence of dorsal transverse pontine fibers and medial lemniscus |