Labels:text | screenshot | black and white | black | font | document OCR: Itari Lateral extension of parapituitary or pit ely five per tumours is less common. In approxima there is cent of patients with a pituitary tumour may cause extension into the cavernous sinus; this of the cranial nerve palsies due to compressio y rarely, third, fourth, or sixth cranial nerves. Ve ral lobe of pituitary tumours extend into the temp ctends the brain to cause epilepsy. If a tumour one downwards, it may erode the sphenoid asal space, through to the sphenoid sinus and post and so the patient may present with CSI harged rhinorrhoea. In contrast to the fluid dis instance with the 'runny nose' of the cold, in this the fluid contains glucose.