Valente, Diana Vilaresde Almeida, Tomás DuarteGil, InêsNzwalo, HipólitoFélix, Ana Catarina2022-06-092022-06-0920220300-9009http://hdl.handle.net/10400.1/17849Isolated internuclear ophthalmoplegia (INO) is an extremely rare presentation of stroke [1–3]. INO is defned by the presence of ipsilateral adduction paresis with contralateral dissociated nystagmus on horizontal gaze and is caused by strategic brainstem lesions involving the medial longitudinal fasciculus (MLF) [2, 3].engInternuclear ophthalmoplegiaFacial colliculusInfarctionInternuclear ophthalmoplegia, skew deviation and nystagmus from facial colliculus infarction: small lesion big troublejournal article10.1007/s13760-022-01930-3