| Phenotype details |
see paper; ..., no prenatal anomalies; generalized hypotonia; 2y-MRI brain dysmorphic corpus callosum, scattered foci of T2 prolongation in periventricular white matter; moderate global developmental delay (language limited, speech apraxia, ambulatory); mild hypermetropia, nasolacrimal duct obstruction; chronic om s/p tm tubes, normal audiometry; normal dentition, no caries; no cardiac problems; no respiratory problems; severe feeding difficulties, velopharyngeal insufficiency, GERD, constipation; nocturia; neutropenia (resolved), intermittent normocytic anemia; no endocrine problems; left sided hemihyperplasia; hypogammaglobulinemia; normal skin; severe fatigue, drop attacks (unclear etiology); 7y-brother hemihyperplasia, normal development (no FBXW7 variant); somewhat flat face, short nose, downturned corners of mouth; hemihyperplasia left leg |