Obstructive tracheal mass due to an inflammatory polyp in a cat

A 13-year-old, male domestic shorthair was presented for a 1.5-year history of progressive dyspnea. Multiple intratracheal masses were seen on thoracic radiographs and during bronchoscopy. A diagnosis of an inflammatory polyp infiltrated with lymphocytes and plasma cells was made on histopathological examination of the largest mass following excisional biopsy.