An adult patient presented with an acute and maximum in intensity at onset frontal headache that began 30 min after take off of a commercial jet airplane 1 week previously. The patient’s medical history was unremarkable. Physical examination and ophthalmoscopy were normal. Differential diagnosis included subarachnoid haemorrhage, cervical artery dissection, cerebral venous thrombosis, spontaneous intracranial hypotension, pituitary …