RESUMO
@#Objective To report a novel case of hereditary spastic paraparesis type 11 (SPG11) first presenting as juvenile Parkinsonism. Methods A 27 years old man first attack at 13 years old was reviewed. Results Parkinsonism-like features, such as tremor, rigidity, bradykinesia and gradually difficulty walking, were complained, and responded to dopaminergic therapy. MRI showed thin corpus callosum and hyper-intense T2WI lesions in periventricular regions. His nerve conduction velocity was normal. Genetic analysis detected two novel mutations, named c.5867-1G>C and c.3687-2A>G, in spastic paraplegia gene 11, which came from his father and mother separately. Conclusion Parkinsonism may be the inaugural presentation of SPG11, and a genetic test may be needed for the child with juvenile Parkinsonism.