I'm indebted to
blueartemis07 for reminding me that I had left details from my reports.
The original infection had been cleared up, which was why they were going send her home last week. They were lucky to be able to fit her in for a scan when they did, otherwise she would have had to go in as an outpatient which would have delayed any diagnosis of the tumour.
Meanwhile her blood-sugars have been going crazy. It seems that the less so ate the higher they got. They've now changed her insulin but I don't know if it's under control yet.