Labels:text | black | screenshot | black and white OCR: ure from a Headaches are caused by loca tretching of the tumour and probably result a in a patient Rarely, they can dura mater above the pituita with a pituitary tumour (Fig for example, a be caused by a suprasellar tur esses the ents the passage craniopharyngioma), which n the third and aqueduct of Sylvius and thus ydrocephalus and of cerebrospinal fluid (CSF) b fourth ventricles. This result 1 ventricles. In enlargement of the third and are effects are general, headaches caused by itteni variable in location and are i