International Neuropsychiatric Disease Journal,
Carbon monoxide; CO is a colourless, odourless, tasteless and non-irritant type of gas. CO emerges as a consequence of poor combustion of carbon-based fuels, which can lead to acute and chronic poisoning. Despite the same exposure conditions, individuals may be confronted with different symptoms of CO poisoning. There are no qualitative studies on the long-term effects of CO poisoning on the headache, but there exist some reports of headache after chronic poisoning. The combination of cerebral venous thrombosis; CVT with carbonmonoxideintoxication has not been reported before. The most common symptom of patient's admission for CVT was reported as headache . This rate has been reported as between 77-88% in various studies. Papillary oedema and optical atrophy after CO toxicity have often been reported, but this situation could not be related to increased intracranial pressure.Here we present a patient with headache due to carbon monoxide poisoning 3 months later.The headache of this patient was temporally related to carbon monoxide intoxication,and CVT and intracranial hypertension findings were detected. We have never encountered such a case presentation in the literature before. It is interesting because of the first instance. We would like to draw attention to the possibility of intracranial hypertension and CVT in a headache after carbon monoxide poisoning.