Vieira, J.P.Brito, M.J.Lopes de Carvalho, I.2020-04-222020-04-222019-06-28J Child Neurol. 2019 Oct;34(12):748-750. doi: 10.1177/0883073819858263. Epub 2019 Jun 280883-0738http://hdl.handle.net/10400.18/6476Headache with neurologic deficits and cerebrospinal fluid lymphocytosis (HaNDL) is a rare headache syndrome included in the Classification of Headache of the International Headache Society as a “headache attributed to non-infectious inflammatory intracranial disease.” We report one 15-year-old patient with clinical history and cerebrospinal fluid findings compatible with the diagnosis of HaNDL in whom Borrelia lusitaniae was identified in cerebrospinal fluid by polymerase chain reaction.engEncephalitisMeningitisAutoimmuneHeadacheInfecções Sistémicas e ZoonosesBorrelia lusitaniae infection mimicking headache, neurologic deficits, and cerebrospinal fluid lymphocytosisjournal article10.1177%2F0883073819858263