Why are you getting an x-ray? This won't show a pituitary gland tumour.
If she's showing the classic symptoms of confusion, inability to grasp with front paws, excessive bruxxing, head bumping, PT pushback etc then you have to diagnose by symptoms.
Then she won't have PT. The grasping ability is one of the first real symptoms people see. The confusion and stiff looking legs, low movement are the first ones.
Sniff her ears for anything foul smelling. If you don't smell anything, try using your finger in her ear canal and start gently rubbing in circles, she'll let you know if she likes it or not. Any overproduction of wax should stick to your fingers from the warmth of them melting the wax. Just wipe it off on a tissue. If she starts grinding her ear on your finger, making funny faces, licking the air, etc, she's enjoying her itchy ears being rubbed.
She's lovely. No PT there though Eyes are bright, very adept, she looks fantastic.
itchy ears are definitely a big possibility. She's older and maybe not quite as adept at getting those hind claws in her ears to itch them. Keep rubbing and once she stops really enjoying it, then you stop LOL
Okay. I hope that the doxycycline will be sufficient to treat it. The sounds have not become worse, but they are not completely gone. I think that there might be a bit of an improvement in comparison to last Friday.
Loesje might have otitis externa in her right ear and I have to give her antibiotic ear drops for a week. Her lungs sounded normal. I have to come back next week.
Someone else had an appointment before me with an 1,5 year old female rat. I heard that this rat had a pituitary tumor and got sick in a very short period of time. She was sterilised and had to be put to sleep.