Vieira, JPBrito, MJde Carvalho, IL2021-03-222021-03-222019J Child Neurol . 2019 Oct;34(12):748-750http://hdl.handle.net/10400.17/3626Headache 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.engAdolescentDiagnosis, DifferentialHeadache DisordersHumansLymphocytosisMaleSpirochaetalesSpirochaetales InfectionsHDE NEU PEDHDE INF PEDjournal article10.1177/0883073819858263