| Phenotype details |
see paper; ..., severe developmental delay, characteristic facial features, chronic elevation of serum aspartate transaminase, lactate dehydrogenase, creatine kinase, and soluble interleukinâ2 receptor, persistent elevation of neuron specific enolase (NSE) in serum and cerebrospinal fluid; MRI brain using susceptibilityâweighted imaging (SWI) demonstrated iron accumulation in the GP and SN bilaterally |