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The European Academy of Neurology/Movement Disorder Society-European Section recently released guidelines on invasive therapies in the treatment of Parkinson’s disease, published simultaneously in the European Journal of Neurologyl and in Movement Disorders2. The authors meticulously documented and summarized the literature on deviceaided invasive therapies (deep brain stimulation, apomorphine pump and levodopa/carbidopa intrajejunal pump), and are to be praised on this Herculean work. The authors, however, inadequately documented and summarized the literature on lesional surgery, especially posterovental pallidotomy. This resulted in an erroneous appreciation of the utility of this procedure and in Guidelines that contradicted the repeated endorsements of pallidotomy by the International Parkinson and Movement Disorders Society (MDS) in 2011 and 20183, 4, as well as contradicted previous evaluations of pallidotomy by some of the very same authors of the European Guidelines5, 6.