It's horrible balancing so many issues, I know. I have known two cats with
shadows on their lung xrays. One sadly had a tumour, but I assume the vet
would recognise that right away. The other was a very strange case. Seven
months before he had a car accident and we didn't know at the time had torn a
small hole in the diaphragm. The hole had enlarged over time and the
intestines had passed into the chest cavity and caused the lung to collapse.
This showed as a shadow. We didn't have surgery because he was a very old cat
and had HCM and kidney and other issues. Shadows can be infections as well.
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