Diğer, ss.9-11, 2017
One-and-a-half syndrome is characterized by conjugate horizontal gaze palsy in one direction side and
internuclear ophtalmoplegia in the other side. This syndrome occurs with lesions in the dorsal pontine tegmentum
involving the ipsilateral PPRF or the abducens nucleus and have to extend the ipsilateral MLF.
The report describes a patient with Behcet disease who developed one-and-a-half syndrome as a result of pontine
tegmentum involvement.