We lost our previous Maine Coon to cancer. She developed nasal polyps that were malignant. We treated her with medications and even a Flo-vent inhaler, but in the end, it started to break through the roof of her snout and we had to put her down. She had survived a urinary tract problem, hyperthyroidism, and chylothorax, but she couldn't beat this. Ole Giz' was a sweetie we adopted when she was about 2 1/2 years old. When she passed, she was close to 17 years old.