(1) There's no differentiation between the tests which are done for 'cancer and brain tumours' in the stats. That's typically done under the Suspected Cancer diagnostic framework, usually screened and stratified by a clinician such as a consultant radiologist or endoscopist...https://twitter.com/Miles4Lothian/status/1034704908317016064 …
There is nothing stopping the government breaking down these figures given endoscopy and radiography both require indications to be performed. Almost by definition diagnostic tests will not know for sure whether they find a malignant or benign cause.