“…As regards to parkinsonism, the paraneoplastic form is a well-known, despite uncommon, entity whose first reports were described almost 30 years ago, with the finding of degeneration of substantia nigra in a patient with infiltrating ductal breast carcinoma (Golbe et al, 1989 ). Since then, several different autoantibodies have been associated to the development of clinically heterogeneous extrapyramidal syndromes, presenting with dystonia, dyskinesia, corea or other motor symptoms (Tada et al, 2004 ; Pittock et al, 2006 ; Zandi et al, 2015 ; Dash et al, 2016 ; Mehta et al, 2016 ; Nabil et al, 2017 ). However, to our knowledge, no clear evidence of causal relation between anti-Hu antibodies and parkinsonism has been reported so far.…”