According to a study published in the journal Neurosurgery headache could at times be the only symptom of brain tumour recommending CT scans and other neuroimaging tests for people with headache for early diagnosis of the disease. According to the researchers those who ignore headache are at a risk of delaying or missing the diagnosis. Event specialists following recent guidelines that suggest limiting the use of CT scans and other tests for patients with headaches risk their patients who might have brain tumour. Dr Ammar H Hawasli and colleagues at Washington University School of Medicine St Louis emphasised that the