Posterior Reversible Encephalopathy Syndrome (PRES) is a reversible clinical and radiological entity. There are several entities that are associated with PRES. Chronic obstructive pulmonary disease (COPD) is a rare factor for the development of this condition. We present the case of a 71-years-old woman who was being treated for an acute exacerbation of COPD and developed sensory impairment and seizures. The findings of characteristic images, associated clinical symptoms and their medical history led to a diagnosis of PRES in our patient. Although the association of PRES and COPD is a rare entity, the diagnosis of PRES should be a differential if a patient develops encephalopathy or seizures in the exacerbation of COPD.