My 6 year old Basset was diagnosed with this rare disease last week. Her only symptom was an occasional cough of about a week’s duration. A lung X-ray revealed 2 large masses which were originally thought to be malignant but turned out to be composed of eosinophilic/inflammatory cells. She is on heavy dose of prednisone in hopes that her tumors will shrink. Has anyone had any experience with this disease?