Osteochondromatosis in the Rib of a Cat

Abstract

A very hard mass in the left thoracic wall of a six-year-old, male, mixed-breed cat involved sixth to eighth ribs. Incisional biopsy resulted in a histological diagnosis of osteochondromatosis. The left thoracic wall resection, including sixth and eighth ribs were performed. The resulting chest wall defect was closed with a polytetrafluoroethyene mesh sheet. One year later, the cat was clinically normal without any recurrence or new lesions.